ELEMENTUSA
Internal · not for distribution

Orbis and ElementUSA: mine-waste data, and a proposed validation program

A working reference compiling what the current data shows, what it does not show, and the staged program proposed in the 22 August memo.

PurposeProvide a fact-based starting point for deciding how to validate and monetise the Orbis opportunity. It is not a recommendation.
StatusWorking reference for review and adjustment. Not an investment recommendation, not a technical feasibility study, and not a valuation.
ScopeFigures come from the USGS National Mine Waste Inventory (public domain), the Orbis database, our own diligence reports, and cited public announcements. Nothing here rests on a license that has not been signed.
Markingverified queried from our own data or an issuing authority   claimed announced by a company or agency, not reconciled to an executed agreement   assumed stated but untested

The 22 August memo proposes that Orbis may be most useful as the front end of a repeatable project-development process rather than as a database sold on its own: identify candidate resources, secure access to test them, validate the material in ElementUSA's laboratory, develop a recovery pathway, and only then seek funding for a defined project. The sections below set out the data available to support that sequence, and the gaps in it.

764US mine-waste features mapped
144on private land, no Superfund, not reclaimed
91more that need one status check
194carry Superfund liability
303with no recorded owner, the research gap

The idea in one line

Where each dataset sits in the sequence

Getting from a pile on a map to a plant that pays takes five steps, in order. Three of them are questions about data. The last two are physical work, and they are the two we already do.

  1. Not oursWhat is in itComposition estimates, per site
  2. OursWhat exists, and whereOrebis, 537,387 sites
  3. Not oursIs it financeableFiled technical reports
  4. OursCan you get it outCRA lab, flowsheet work
  5. OursWill you build itElementUSA Inc.
The first three are questions about data. The last two are physical work, and ElementUSA performs them.

The first three boxes are lead generation. The last two are where money is actually made, and no data company can do them. That asymmetry is the whole strategy: we do not need to win the data business, we need to be the only one who can act on what the data says.

What the data says

Land status and liability across the 764 mapped features

The USGS national mine-waste inventory maps 764 waste features covering 585 square kilometers. Ranking by estimated metal content alone would place federal-land and Superfund features near the top, where access is constrained. Land status and liability are therefore recorded alongside size.

Mission Complex, AZ. Tailings - pond. 2 km2 Mission Complex, AZ. Mine dump. 3.46 km2 Mission Complex, AZ. Tailings - pond. 1.74 km2 Mission Complex, AZ. Tailings - pond. 2.3 km2 Mission Complex, AZ. Mine dump. 0.64 km2 Mission Complex, AZ. Mine dump. 1.62 km2 Mission Complex, AZ. Mine dump. 0.73 km2 Pinto Valley, AZ. Tailings - pond. 0.83 km2 B and H Mill Tailings, MT. Tailings - mill. 0.01 km2 Calvert Mine, MT. Mine dump. 0.02 km2 Charter Oak Mine, MT. Tailings - mill. 0.01 km2 Elkhorn Mine and Mill, MT. Tailings - mill. 0.01 km2 Elkhorn Mine and Mill, MT. Mine dump. 0.02 km2 Elkhorn Mine and Mill, MT. Mine dump. 0.02 km2 Ermont Mine and Mill, MT. Tailings - pond. 0.03 km2 Frances Copper Mine, MT. Mine dump. 0 km2 Frances Copper Mine, MT. Mine dump. 0.01 km2 Iron Rod, MT. Mine dump. 0 km2 Snowbird Mine, MT. Mine dump. 0.03 km2 Tungsten Queen Mine, NC. Tailings - pond. 0.21 km2 Cranberry Mine, NC. Tailings - undifferentiated. 0.01 km2 Cranberry Mine, NC. Mine dump. 0.01 km2 Cranberry Mine, NC. Mine dump. 0 km2 Cranberry Mine, NC. Mine dump. 0 km2 Cranberry Mine, NC. Mine dump. 0.01 km2 Cranberry Mine, NC. Mine dump. 0.01 km2 Brushy Creek Mine, NC. Tailings - undifferentiated. 0.19 km2 Brushy Creek Mine, NC. Mine dump. 0.16 km2 Brushy Creek Mine, NC. Mine dump. 0.06 km2 Brushy Creek Mine, NC. Mine dump. 0.03 km2 Ray Mica Mine, NC. Mine dump. 0.02 km2 Ray Mica Mine, NC. Mine dump. 0 km2 Coggins Mine, NC. Mine dump. 0 km2 Iola Mine, NC. Mine dump. 0 km2 Iola Mine, NC. Mine dump. 0 km2 Hawkins Mine, NC. Tailings - undifferentiated. 0.14 km2 Saunders Mine, NM. Tailings - undifferentiated. 0.9 km2 Weepah, NV. Tailings - undifferentiated. 0.01 km2 Weepah, NV. Mine dump. 0.09 km2 Weepah, NV. Tailings - undifferentiated. 0.02 km2 Weepah, NV. Tailings - undifferentiated. 0.13 km2 Weepah, NV. Mine dump. 0.03 km2 Fondaway Canyon, NV. Leach pile - heap. 0.09 km2 Hobble Creek Mine and Mill, NV. Leach pile - heap. 0.01 km2 Pine Grove, NV. Mine dump. 0.01 km2 Pine Grove, NV. Tailings - undifferentiated. 0 km2 Pine Grove, NV. Tailings - undifferentiated. 0.02 km2 B and B Mercury Mine, NV. Tailings - undifferentiated. 0.03 km2 B and B Mercury Mine, NV. Tailings - undifferentiated. 0.03 km2 B and B Mercury Mine, NV. Mine dump. 0.03 km2 B and B Mercury Mine, NV. Mine dump. 0.01 km2 Ketchup Flat, NV. Leach pile - heap. 0.17 km2 Ketchup Flat, NV. Mine dump. 0.18 km2 Minnesota Mine, NV. Mine dump. 0.04 km2 Minnesota Mine, NV. Mine dump. 0.03 km2 Minnesota Mine, NV. Mine dump. 0.06 km2 Minnesota Mine, NV. Mine dump. 0.03 km2 Minnesota Mine, NV. Mine dump. 0.11 km2 Minnesota Mine, NV. Tailings - undifferentiated. 0.05 km2 Minnesota Mine, NV. Tailings - pond. 0.1 km2 Argentum Mill, NV. Tailings - pond. 0.09 km2 Argentum Mill, NV. Settling pond. 0.01 km2 Big Mike Mine, NV. Leach pile - heap. 0.02 km2 Big Mike Mine, NV. Mine dump. 0 km2 Big Mike Mine, NV. Mine dump. 0.08 km2 Big Mike Mine, NV. Mine dump. 0.08 km2 Big Mike Mine, NV. Mine dump. 0.04 km2 Big Mike Mine, NV. Mine dump. 0.03 km2 Wind Mountain Mine, NV. Leach pile - heap. 0.33 km2 Wind Mountain Mine, NV. Leach pile - heap. 0.27 km2 Nivloc Mine, NV. Mine dump. 0 km2 Nivloc Mine, NV. Tailings - mill. 0.01 km2 Nivloc Mine, NV. Tailings - mill. 0.05 km2 Candelaria Mine, NV. Leach pile - heap. 0.54 km2 Candelaria Mine, NV. Leach pile - heap. 0.32 km2 Candelaria Mine, NV. Other. 0.03 km2 Candelaria Mine, NV. Tailings - pond. 0.08 km2 Candelaria Mine, NV. Mine dump. 0.61 km2 Candelaria Mine, NV. Mine dump. 0.61 km2 Candelaria Mine, NV. Mine dump. 0.45 km2 Candelaria Mine, NV. Mine dump. 0.06 km2 Monte Cristo, NV. Mine dump. 0.06 km2 Monte Cristo, NV. Leach pile - heap. 0.02 km2 Monte Cristo, NV. Tailings - pond. 0.01 km2 Lisbon Valley, UT. Mine dump. 0.37 km2 Lisbon Valley, UT. Mine dump. 0.52 km2 Lisbon Valley, UT. Mine dump. 0.66 km2 Goldstrike, UT. Leach pile - heap. 0.26 km2 Mexican Hat, UT. Tailings - pond. 0.32 km2 Cold Spring Kaolin Mine, VA. Tailings - undifferentiated. 0.11 km2 Crimora Mine, VA. Mine dump. 0.03 km2 Wright Bank, VA. Mine dump. 0.04 km2 Wright Bank, VA. Mine dump. 0 km2 Wright Bank, VA. Mine dump. 0.01 km2 Vesuvius Mine, VA. Tailings - pond. 0.07 km2 Vesuvius Mine, VA. Mine dump. 0.01 km2 Vesuvius Mine, VA. Mine dump. 0.09 km2 Kennedy Mine, VA. Mine dump. 0.01 km2 Black Rock Mine, VA. Mine dump. 0.01 km2 Round Mountain Mine, VA. Mine dump. 0.04 km2 The Suiter Mines, VA. Mine dump. 0.02 km2 The Suiter Mines, VA. Tailings - pond. 0.01 km2 The Suiter Mines, VA. Tailings - pond. 0.04 km2 The Suiter Mines, VA. Tailings - pond. 0.01 km2 The Suiter Mines, VA. Tailings - undifferentiated. 0.01 km2 The Suiter Mines, VA. Tailings - undifferentiated. 0.01 km2 The Suiter Mines, VA. Tailings - pond. 0.01 km2 Stange and Arms Mine, VA. Tailings - pond. 0.03 km2 Stange and Arms Mine, VA. Mine dump. 0.01 km2 Mine Bank Mine, VA. Mine dump. 0.02 km2 Mexico Kentucky Mill Property, KY. Tailings - pond. 0.08 km2 Mexico Kentucky Mill Property, KY. Tailings - pond. 0.02 km2 Mexico Kentucky Mill Property, KY. Tailings - pond. 0.03 km2 Lafayette Fluorspar Co., KY. Tailings - pond. 0.02 km2 Lafayette Fluorspar Co., KY. Tailings - pond. 0.01 km2 Hutson Mine, KY. Tailings - pond. 0.02 km2 Hutson Mine, KY. Tailings - pond. 0.03 km2 Hutson Mine, KY. Tailings - pond. 0.01 km2 Pygmy Property, KY. Tailings - pond. 0.01 km2 Babb-Barnes Property, KY. Tailings - mill. 0.02 km2 Babb-Barnes Property, KY. Tailings - mill. 0.03 km2 Babb-Barnes Property, KY. Tailings - mill. 0.03 km2 Mico (Cook-Springs) Mine, KY. Tailings - mill. 0.02 km2 Mico (Cook-Springs) Mine, KY. Tailings - mill. 0.01 km2 Mico (Cook-Springs) Mine, KY. Tailings - mill. 0.01 km2 Mico (Cook-Springs) Mine, KY. Tailings - mill. 0.02 km2 Mico (Cook-Springs) Mine, KY. Tailings - mill. 0.02 km2 Mico (Cook-Springs) Mine, KY. Tailings - mill. 0.01 km2 Mico (Cook-Springs) Mine, KY. Tailings - mill. 0.01 km2 Mico (Cook-Springs) Mine, KY. Tailings - mill. 0.03 km2 Lucile Mine, KY. Tailings - mill. 0 km2 Lucile Mine, KY. Tailings - pond. 0 km2 Lucile Mine, KY. Tailings - pond. 0 km2 Lucile Mine, KY. Tailings - pond. 0 km2 Lucile Mine, KY. Tailings - pond. 0 km2 Humboldt Mine, MI. Tailings - pond. 0.27 km2 Humboldt Mine, MI. Mine dump. 0.18 km2 Humboldt Mine, MI. Mine dump. 0.11 km2 Humboldt Mine, MI. Tailings - pond. 0.42 km2 Humboldt Mine, MI. Tailings - pond. 0.45 km2 Humboldt Mine, MI. Tailings - pond. 0.22 km2 Humboldt Mine, MI. Tailings - pond. 0.38 km2 Humboldt Mine, MI. Tailings - pond. 0.24 km2 Gardner-Mackinaw Mines, MI. Mine dump. 0.01 km2 Gardner-Mackinaw Mines, MI. Mine dump. 0.01 km2 Republic Mine, MI. Tailings - pond. 3.15 km2 Republic Mine, MI. Tailings - pond. 0.36 km2 Republic Mine, MI. Tailings - pond. 0.79 km2 Republic Mine, MI. Mine dump. 0.35 km2 Republic Mine, MI. Mine dump. 0.69 km2 Chase Mine, MI. Mine dump. 0 km2 Salisbury Mine, MI. Mine dump. 0 km2 Lake Angeline Mine, MI. Mine dump. 0 km2 Mitchell Mine, MI. Mine dump. 0 km2 Lake Superior Group Holmes Mine, MI. Mine dump. 0.01 km2 Tilden/Empire, MI. Tailings - pond. 13.34 km2 Tilden/Empire, MI. Tailings - pond. 5.85 km2 Tilden/Empire, MI. Tailings - pond. 4.7 km2 Redridge, MI. Tailings - mill. 0.2 km2 Blueberry Mine, MI. Mine dump. 0.01 km2 Princeton Mine, MI. Mine dump. 0.01 km2 Princeton Mine, MI. Mine dump. 0 km2 Stephenson Mine, MI. Mine dump. 0.01 km2 Francis Mine, MI. Mine dump. 0.01 km2 Austin Mine, MI. Mine dump. 0 km2 White Pine, MI. Tailings - pond. 10.78 km2 White Pine, MI. Tailings - pond. 7.58 km2 White Pine, MI. Tailings - pond. 2.07 km2 White Pine, MI. Slag pile. 0.13 km2 Baltic Mine Mill, MI. Tailings - mill. 0.11 km2 Nutrien Aurora, NC. Gypsum stack. 0.4 km2 Nutrien Aurora, NC. Gypsum stack. 0.46 km2 Nutrien Aurora, NC. Gypsum stack. 0.42 km2 Nutrien Aurora, NC. Phosphate pond. 2.87 km2 Nutrien Aurora, NC. Phosphate pond. 1.58 km2 Nutrien Aurora, NC. Phosphate pond. 0.93 km2 Nutrien Aurora, NC. Phosphate pond. 1.62 km2 Nutrien Aurora, NC. Phosphate pond. 3.68 km2 Nutrien Aurora, NC. Phosphate pond. 1.86 km2 Nutrien Aurora, NC. Settling pond. 3.16 km2 Nutrien Aurora, NC. Phosphate pond. 2.67 km2 Nutrien Aurora, NC. Phosphate pond. 3.46 km2 Nutrien Aurora, NC. Phosphate pond. 4.96 km2 Nutrien Aurora, NC. Phosphate pond. 1.22 km2 Nutrien Aurora, NC. Phosphate pond. 2.83 km2 Nutrien Aurora, NC. Settling pond. 3.68 km2 Hallman-Beam Mine, NC. Tailings - pond. 0.15 km2 Hallman-Beam Mine, NC. Tailings - pond. 0.07 km2 Hallman-Beam Mine, NC. Tailings - pond. 0.04 km2 Hallman-Beam Mine, NC. Tailings - pond. 0.16 km2 Hallman-Beam Mine, NC. Tailings - pond. 0.29 km2 Hallman-Beam Mine, NC. Mine dump. 0.6 km2 Kings Mountain H1 Mine, NC. Ore stockpile/storage. 0.03 km2 Kings Mountain H1 Mine, NC. Overburden pile. 0.02 km2 Kings Mountain H1 Mine, NC. Overburden pile. 0.03 km2 Kings Mountain Mine - West, NC. Tailings - pond. 0.36 km2 Hillsborough Mine, NC. Settling pond. 0.02 km2 Hillsborough Mine, NC. Settling pond. 0.01 km2 Chalk Mountain Mine, NC. Mine dump. 0.02 km2 Chalk Mountain Mine, NC. Mine dump. 0.02 km2 Chalk Mountain Mine, NC. Ore stockpile/storage. 0.01 km2 Chalk Mountain Mine, NC. Ore stockpile/storage. 0.01 km2 Peachbottom Mine, NC. Mine dump. 0 km2 Union Copper Mine, NC. Mine dump. 0.01 km2 Honeycutt Shaft/Old Field Diggings, NC. Mine dump. 0.02 km2 Cagle Mine, NC. Mine dump. 0.01 km2 Robbins Mine, NC. Mine dump. 0.04 km2 Robbins Mine, NC. Mine dump. 0.02 km2 Robbins Mine, NC. Mine dump. 0.02 km2 Dry Creek Mine, NC. Mine dump. 0 km2 Dry Creek Mine, NC. Mine dump. 0 km2 Conrad Hill Mine, NC. Mine dump. 0.01 km2 Glendon Mine, NC. Mine dump. 0.07 km2 Glendon Mine, NC. Mine dump. 0.03 km2 Glendon Mine, NC. Mine dump. 0.02 km2 Glendon Mine, NC. Mine dump. 0.05 km2 Glendon Mine, NC. Mine dump. 0.04 km2 Glendon Mine, NC. Mine dump. 0.02 km2 Silver Valley Mine, NC. Mine dump. 0.01 km2 Bessemer City Quarry, NC. Tailings - pond. 0.03 km2 Silver Hill Mine, NC. Mine dump. 0.03 km2 Creta, OK. Tailings - pond. 0.13 km2 Creta, OK. Tailings - pond. 0.14 km2 Creta, OK. Tailings - pond. 0.1 km2 Creta, OK. Tailings - pond. 0.02 km2 Alberene Quarry, VA. Mine dump. 0.01 km2 Alberene Quarry, VA. Mine dump. 0.01 km2 Austinville Zinc and Lead Mines, VA. Mine dump. 0.02 km2 Austinville Zinc and Lead Mines, VA. Mine dump. 0.25 km2 Austinville Zinc and Lead Mines, VA. Mine dump. 0.01 km2 Austinville Zinc and Lead Mines, VA. Mine dump. 0.01 km2 Austinville Zinc and Lead Mines, VA. Mine dump. 0.01 km2 Crimora Mine, VA. Mine dump. 0.02 km2 Crimora Mine, VA. Mine dump. 0.07 km2 Crimora Mine, VA. Mine dump. 0.11 km2 Montpelier Mine, VA. Tailings - pond. 0.06 km2 Montpelier Mine, VA. Mine dump. 0.05 km2 Montpelier Mine, VA. Tailings - pond. 0.1 km2 Montpelier Mine, VA. Tailings - pond. 0.06 km2 Montpelier Mine, VA. Mine dump. 0.04 km2 Montpelier Mine, VA. Mine dump. 0.01 km2 Montpelier Mine, VA. Mine dump. 0.03 km2 Montpelier Mine, VA. Mine dump. 0.07 km2 Betty Baker Mine, VA. Mine dump. 0 km2 Betty Baker Mine, VA. Mine dump. 0 km2 Betty Baker Mine, VA. Mine dump. 0 km2 Stanley Mine, VA. Mine dump. 0.02 km2 Stanley Mine, VA. Mine dump. 0.01 km2 Stanley Mine, VA. Mine dump. 0 km2 Mine of the American Rutile Company, VA. Tailings - undifferentiated. 0.01 km2 Mine of the American Rutile Company, VA. Mine dump. 0.02 km2 Mine of the American Rutile Company, VA. Tailings - pond. 0.03 km2 Mine of the American Rutile Company, VA. Mine dump. 0 km2 Mine of the American Rutile Company, VA. Mine dump. 0 km2 Lineberry, J., Mine, VA. Mine dump. 0 km2 Lineberry, J., Mine, VA. Mine dump. 0 km2 Lineberry, J., Mine, VA. Mine dump. 0 km2 Round Hill Mine, VA. Tailings - undifferentiated. 1.54 km2 Round Hill Mine, VA. Tailings - undifferentiated. 0.25 km2 Round Hill Mine, VA. Tailings - undifferentiated. 0.12 km2 Old Hickory Mine, VA. Tailings - undifferentiated. 0.63 km2 Old Hickory Mine, VA. Tailings - undifferentiated. 0.09 km2 Old Hickory Mine, VA. Tailings - undifferentiated. 0.01 km2 Old Hickory Mine, VA. Tailings - pond. 0.03 km2 Old Hickory Mine, VA. Tailings - undifferentiated. 0.06 km2 Old Hickory Mine, VA. Tailings - undifferentiated. 0.19 km2 Old Hickory Mine, VA. Tailings - undifferentiated. 0.22 km2 Old Hickory Mine, VA. Tailings - undifferentiated. 1.04 km2 Old Hickory Mine, VA. Tailings - undifferentiated. 0.01 km2 Old Hickory Mine, VA. Tailings - undifferentiated. 0.55 km2 Old Hickory Mine, VA. Tailings - undifferentiated. 0.2 km2 Old Hickory Mine, VA. Tailings - undifferentiated. 0.28 km2 Old Hickory Mine, VA. Tailings - undifferentiated. 0.31 km2 Old Hickory Mine, VA. Tailings - undifferentiated. 0.24 km2 Old Hickory Mine, VA. Tailings - pond. 0.03 km2 Old Hickory Mine, VA. Tailings - pond. 0.02 km2 Old Hickory Mine, VA. Tailings - undifferentiated. 0.02 km2 Old Hickory Mine, VA. Tailings - undifferentiated. 0.39 km2 Old Hickory Mine, VA. Tailings - undifferentiated. 0.29 km2 Puddledock Sand and Gravel, VA. Tailings - pond. 0.41 km2 Puddledock Sand and Gravel, VA. Tailings - undifferentiated. 0.07 km2 Puddledock Sand and Gravel, VA. Mine dump. 0.02 km2 Puddledock Sand and Gravel, VA. Tailings - undifferentiated. 0.32 km2 Puddledock Sand and Gravel, VA. Tailings - pond. 0.31 km2 Puddledock Sand and Gravel, VA. Tailings - pond. 0.37 km2 Puddledock Sand and Gravel, VA. Tailings - pond. 0.58 km2 Puddledock Sand and Gravel, VA. Mine dump. 0.08 km2 Stony Creek, VA. Tailings - pond. 0.09 km2 Stony Creek, VA. Tailings - pond. 0.04 km2 Stony Creek, VA. Tailings - pond. 0.02 km2 Stony Creek, VA. Tailings - undifferentiated. 0.07 km2 Stony Creek, VA. Mine dump. 0.01 km2 Stony Creek, VA. Tailings - pond. 0.09 km2 Stony Creek, VA. Tailings - pond. 0.02 km2 Stony Creek, VA. Mine dump. 0.09 km2 Stony Creek, VA. Mine dump. 0.06 km2 Stony Creek, VA. Tailings - undifferentiated. 0.18 km2 Stony Creek, VA. Tailings - pond. 0.13 km2 Stony Creek, VA. Tailings - undifferentiated. 0.35 km2 Mineral Ridge Mine, VA. Mine dump. 0.05 km2 Brink Mine, VA. Tailings - pond. 0.05 km2 Brink Mine, VA. Tailings - undifferentiated. 0.02 km2 Brink Mine, VA. Tailings - undifferentiated. 0.92 km2 Brink Mine, VA. Tailings - undifferentiated. 0.11 km2 Kimball, VA. Tailings - undifferentiated. 0.02 km2 Kimball, VA. Tailings - undifferentiated. 0 km2 Miami-Inspiration, AZ. Tailings - pond. 0.78 km2 Miami-Inspiration, AZ. Tailings - pond. 1.22 km2 Miami-Inspiration, AZ. Tailings - pond. 0.3 km2 Miami-Inspiration, AZ. Tailings - pond. 1.36 km2 Miami-Inspiration, AZ. Tailings - pond. 0.54 km2 Miami-Inspiration, AZ. Tailings - pond. 1.97 km2 Miami-Inspiration, AZ. Tailings - pond. 0.33 km2 Miami-Inspiration, AZ. Tailings - pond. 0.95 km2 Miami-Inspiration, AZ. Leach pile - heap. 1.64 km2 Miami-Inspiration, AZ. Leach pile - heap. 0.58 km2 Miami-Inspiration, AZ. Leach pile - heap. 2.05 km2 Miami-Inspiration, AZ. Overburden pile. 0.48 km2 Miami-Inspiration, AZ. Overburden pile. 1.14 km2 Twin Buttes, AZ. Tailings - pond. 2.53 km2 Twin Buttes, AZ. Tailings - pond. 5.08 km2 Twin Buttes, AZ. Mine dump. 0.98 km2 Twin Buttes, AZ. Mine dump. 1.95 km2 Twin Buttes, AZ. Mine dump. 3.04 km2 Twin Buttes, AZ. Mine dump. 4.46 km2 Twin Buttes, AZ. Mine dump. 0.27 km2 Sierrita-Esperanza, AZ. Tailings - pond. 2.66 km2 Sierrita-Esperanza, AZ. Mine dump. 2.56 km2 Sierrita-Esperanza, AZ. Leach pile - heap. 1.95 km2 Sierrita-Esperanza, AZ. Leach pile - heap. 2.14 km2 Sierrita-Esperanza, AZ. Mine dump. 1.6 km2 Sierrita-Esperanza, AZ. Mine dump. 0.4 km2 San Manuel, AZ. Mine dump. 0.44 km2 San Manuel, AZ. Tailings - pond. 4.04 km2 San Manuel, AZ. Tailings - pond. 3.9 km2 San Manuel, AZ. Tailings - pond. 1.47 km2 San Manuel, AZ. Leach pile - heap. 1.17 km2 San Manuel, AZ. Tailings - pond. 2.93 km2 San Manuel, AZ. Tailings - pond. 1.95 km2 Resolution Copper, AZ. Tailings - pond. 0.2 km2 Resolution Copper, AZ. Tailings - pond. 0.23 km2 Resolution Copper, AZ. Tailings - pond. 0.25 km2 United Verde, AZ. Tailings - pond. 0.52 km2 Christmas, AZ. Tailings - pond. 0.22 km2 Christmas, AZ. Tailings - pond. 0.21 km2 Christmas, AZ. Mine dump. 0.68 km2 Christmas, AZ. Mine dump. 0.41 km2 Bisbee, AZ. Tailings - pond. 2.78 km2 Bisbee, AZ. Tailings - pond. 1.12 km2 Bisbee, AZ. Leach pile - heap. 1.58 km2 Bisbee, AZ. Leach pile - heap. 0.24 km2 Bisbee, AZ. Mine dump. 0.58 km2 Bisbee, AZ. Mine dump. 1.1 km2 New Cornelia Mine, AZ. Tailings - pond. 2.56 km2 New Cornelia Mine, AZ. Waste rock stockpile. 0.8 km2 New Cornelia Mine, AZ. Slag pile. 0.2 km2 New Cornelia Mine, AZ. Waste rock stockpile. 4.69 km2 New Cornelia Mine, AZ. Tailings - pond. 1.96 km2 New Cornelia Mine, AZ. Tailings - pond. 1.71 km2 New Cornelia Mine, AZ. Tailings - pond. 1.38 km2 Mineral Park, AZ. Tailings - pond. 3 km2 Mineral Park, AZ. Leach pile - dump. 0.49 km2 Mineral Park, AZ. Leach pile - dump. 0.85 km2 Mineral Park, AZ. Mine dump. 0.22 km2 Mineral Park, AZ. Mine dump. 0.46 km2 Mineral Park, AZ. Mine dump. 0.32 km2 Mission Complex, AZ. Tailings - pond. 6.51 km2 Mission Complex, AZ. Mine dump. 1.2 km2 Mission Complex, AZ. Tailings - pond. 0.8 km2 Mission Complex, AZ. Tailings - pond. 1.96 km2 Mission Complex, AZ. Mine dump. 5.07 km2 Mission Complex, AZ. Mine dump. 3.77 km2 Mission Complex, AZ. Tailings - pond. 1.97 km2 Mission Complex, AZ. Tailings - pond. 2.18 km2 Mission Complex, AZ. Mine dump. 0.71 km2 Mission Complex, AZ. Mine dump. 1.11 km2 Johnson Camp Mine, AZ. Leach pile - dump. 0.47 km2 Johnson Camp Mine, AZ. Mine dump. 0.42 km2 Pinto Valley, AZ. Tailings - pond. 3.62 km2 Pinto Valley, AZ. Tailings - pond. 1.12 km2 Pinto Valley, AZ. Tailings - pond. 1.18 km2 Pinto Valley, AZ. Leach pile - heap. 1.01 km2 Ray, AZ. Tailings - pond. 3.31 km2 Ray, AZ. Leach pile - dump. 2.25 km2 Ray, AZ. Leach pile - dump. 1.12 km2 Ray, AZ. Leach pile - dump. 0.92 km2 Ray, AZ. Leach pile - dump. 1.11 km2 Ray, AZ. Leach pile - dump. 0.36 km2 Ray, AZ. Leach pile - dump. 1.8 km2 Ray, AZ. Leach pile - dump. 0.23 km2 Cactus, AZ. Tailings - pond. 1.7 km2 Cactus, AZ. Overburden pile. 0.54 km2 Cactus, AZ. Overburden pile. 0.34 km2 Cactus, AZ. Overburden pile. 0.28 km2 Cactus, AZ. Ore stockpile/storage. 2.39 km2 Cactus-Carlota, AZ. Leach pile - heap. 0.72 km2 Cactus-Carlota, AZ. Mine dump. 0.63 km2 Cactus-Carlota, AZ. Mine dump. 0.22 km2 Climax, CO. Tailings - pond. 2.8 km2 San Luis Mine, CO. Tailings - pond. 0.7 km2 Idarado, CO. Tailings - pond. 0.27 km2 Forest Rose Mill, MT. Tailings - mill. 0.02 km2 Golden Sunlight, MT. Mine dump. 0.76 km2 Golden Sunlight, MT. Tailings - pond. 0.64 km2 Tyrone, NM. Tailings - pond. 1.48 km2 Tyrone, NM. Tailings - pond. 2.33 km2 Tyrone, NM. Tailings - pond. 1.52 km2 Tyrone, NM. Tailings - pond. 1.76 km2 Tyrone, NM. Tailings - pond. 1.41 km2 Tyrone, NM. Tailings - pond. 0.28 km2 Tyrone, NM. Tailings - pond. 2.29 km2 Tyrone, NM. Leach pile - unknown. 1 km2 Chino, NM. Tailings - pond. 0.81 km2 Chino, NM. Tailings - pond. 1.46 km2 Chino, NM. Tailings - pond. 0.84 km2 Chino, NM. Tailings - pond. 3.62 km2 Chino, NM. Tailings - pond. 0.39 km2 Chino, NM. Tailings - pond. 0.45 km2 Chino, NM. Tailings - pond. 1.04 km2 Chino, NM. Slag pile. 0.21 km2 Chino, NM. Mine dump. 0.54 km2 Chino, NM. Mine dump. 0.37 km2 Cunningham Hill Mine, NM. Mine dump. 0.28 km2 Candelaria Mine, NV. Mine dump. 0.31 km2 Mercur, UT. Tailings - pond. 0.54 km2 Mercur, UT. Mine dump. 0.22 km2 Tohono, AZ. Tailings - mill. 0.8 km2 Tohono, AZ. Leach pile - heap. 0.33 km2 Tohono, AZ. Evaporation pond. 0.91 km2 Tohono, AZ. Overburden pile. 0.6 km2 Iron King, AZ. Tailings - mill. 0.29 km2 Ray, AZ. Tailings - pond. 2.72 km2 Ray, AZ. Tailings - pond. 3.97 km2 Henderson, CO. Tailings - pond. 0.21 km2 Henderson, CO. Tailings - pond. 0.28 km2 Eagle Mine, CO. Tailings - pond. 0.36 km2 Anaconda Smelter, MT. Slag pile. 0.01 km2 Anaconda Smelter, MT. Slag pile. 0.04 km2 Anaconda Smelter, MT. Slag pile. 0.11 km2 Anaconda Smelter, MT. Tailings - pond. 14.79 km2 Anaconda Smelter, MT. Tailings - pond. 2.55 km2 Anaconda Smelter, MT. Slag pile. 0.65 km2 Beal Mountain Mine, MT. Leach pile - heap. 0.39 km2 Beal Mountain Mine, MT. Ore stockpile/storage. 0.05 km2 Beal Mountain Mine, MT. Mine dump. 0.19 km2 Berkley Pit, MT. Leach pile - heap. 0.27 km2 Berkley Pit, MT. Leach pile - heap. 0.13 km2 Berkley Pit, MT. Leach pile - heap. 0.08 km2 Berkley Pit, MT. Leach pile - dump. 0.69 km2 Berkley Pit, MT. Leach pile - dump. 0.51 km2 Berkley Pit, MT. Leach pile - dump. 0.1 km2 Block P Tailings, MT. Tailings - mill. 0.03 km2 Block P Tailings, MT. Tailings - mill. 0.03 km2 Butte Reduction Works, MT. Tailings - undifferentiated. 0.06 km2 Butte Reduction Works, MT. Slag pile. 0.01 km2 Butte Reduction Works, MT. Slag pile. 0.01 km2 Butte Reduction Works, MT. Slag pile. 0.01 km2 Carpenter Creek Tailings, MT. Tailings - undifferentiated. 0 km2 Carpenter Creek Tailings, MT. Tailings - undifferentiated. 0.02 km2 Continental Mine, MT. Tailings - pond. 6.18 km2 Continental Mine, MT. Overburden pile. 1.85 km2 Flat Creek IMM, MT. Mine dump. 0.02 km2 Granite-Bimetallic Mine, MT. Tailings - undifferentiated. 0.03 km2 Granite-Bimetallic Mine, MT. Mine dump. 0.05 km2 Landusky, MT. Mine dump. 0.25 km2 Landusky, MT. Leach pile - heap. 0.12 km2 Landusky, MT. Leach pile - heap. 0.43 km2 Landusky, MT. Leach pile - heap. 0.43 km2 Landusky, MT. Mine dump. 0.13 km2 Landusky, MT. Mine dump. 0.36 km2 Landusky, MT. Mine dump. 0.05 km2 Landusky, MT. Mine dump. 0.04 km2 Landusky, MT. Leach pile - heap. 0.02 km2 Landusky, MT. Leach pile - heap. 0.16 km2 Landusky, MT. Leach pile - heap. 0.07 km2 Landusky, MT. Leach pile - heap. 0.05 km2 Pittsmont Mine, MT. Tailings - undifferentiated. 0.22 km2 Pittsmont Mine, MT. Tailings - undifferentiated. 0.24 km2 Zortman, MT. Mine dump. 0.08 km2 Zortman, MT. Tailings - undifferentiated. 0.12 km2 Zortman, MT. Mine dump. 0.1 km2 Zortman, MT. Mine dump. 0.17 km2 Zortman, MT. Leach pile - heap. 0.06 km2 Zortman, MT. Leach pile - heap. 0.06 km2 Zortman, MT. Leach pile - heap. 0.06 km2 Zortman, MT. Leach pile - heap. 0.08 km2 Zortman, MT. Leach pile - heap. 0.15 km2 Zortman, MT. Leach pile - heap. 0.04 km2 Ore Knob Mine, NC. Tailings - pond. 0.1 km2 Questa, NM. Tailings - pond. 1.89 km2 Questa, NM. Tailings - pond. 2.05 km2 Questa, NM. Mine dump. 0.35 km2 Questa, NM. Mine dump. 0.51 km2 Questa, NM. Mine dump. 0.39 km2 Questa, NM. Mine dump. 0.22 km2 Questa, NM. Mine dump. 0.21 km2 Questa, NM. Mine dump. 0.49 km2 Questa, NM. Mine dump. 0.46 km2 Questa, NM. Mine dump. 0.64 km2 Bluewater, NM. Tailings - pond. 1.28 km2 Bluewater, NM. Tailings - pond. 0.23 km2 Tar Creek, OK. Tailings - undifferentiated. 0.54 km2 Tar Creek, OK. Tailings - pond. 0.35 km2 Tar Creek, OK. Tailings - undifferentiated. 0.39 km2 Tar Creek, OK. Tailings - pond. 0.37 km2 Tar Creek, OK. Tailings - undifferentiated. 0.42 km2 Tar Creek, OK. Tailings - pond. 0.26 km2 Tar Creek, OK. Tailings - undifferentiated. 0.16 km2 Tar Creek, OK. Tailings - undifferentiated. 0.44 km2 Tar Creek, OK. Tailings - undifferentiated. 0.16 km2 Tar Creek, OK. Tailings - undifferentiated. 0.22 km2 Tar Creek, OK. Tailings - undifferentiated. 0.35 km2 Tar Creek, OK. Tailings - undifferentiated. 0.12 km2 Tar Creek, OK. Tailings - undifferentiated. 0.06 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0.14 km2 Tar Creek, OK. Tailings - undifferentiated. 0.04 km2 Tar Creek, OK. Tailings - undifferentiated. 0.01 km2 Tar Creek, OK. Tailings - undifferentiated. 0.02 km2 Tar Creek, OK. Tailings - undifferentiated. 0.09 km2 Tar Creek, OK. Tailings - undifferentiated. 0.13 km2 Tar Creek, OK. Tailings - undifferentiated. 0.17 km2 Tar Creek, OK. Tailings - undifferentiated. 0.18 km2 Tar Creek, OK. Tailings - undifferentiated. 0.04 km2 Tar Creek, OK. Tailings - undifferentiated. 0.01 km2 Tar Creek, OK. Tailings - undifferentiated. 0.12 km2 Tar Creek, OK. Tailings - undifferentiated. 0.02 km2 Tar Creek, OK. Tailings - undifferentiated. 0.31 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0.02 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0 km2 Tar Creek, OK. Tailings - undifferentiated. 0.16 km2 Tar Creek, OK. Tailings - undifferentiated. 0.27 km2 Tar Creek, OK. Tailings - undifferentiated. 0.12 km2 Tar Creek, OK. Tailings - undifferentiated. 0.19 km2 Tar Creek, OK. Tailings - undifferentiated. 0.13 km2 Tar Creek, OK. Tailings - undifferentiated. 0.02 km2 Tar Creek, OK. Tailings - undifferentiated. 0.11 km2 Tar Creek, OK. Tailings - undifferentiated. 0.08 km2 Tar Creek, OK. Tailings - undifferentiated. 0.1 km2 Tar Creek, OK. Tailings - undifferentiated. 0.07 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0.01 km2 Tar Creek, OK. Tailings - undifferentiated. 0.02 km2 Tar Creek, OK. Tailings - undifferentiated. 0.07 km2 Tar Creek, OK. Tailings - undifferentiated. 0.01 km2 Tar Creek, OK. Tailings - undifferentiated. 0.01 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Mine dump. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0.02 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0.04 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0.11 km2 Tar Creek, OK. Tailings - undifferentiated. 0.12 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0.05 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0.01 km2 Tar Creek, OK. Tailings - undifferentiated. 0.06 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0.02 km2 Tar Creek, OK. Tailings - undifferentiated. 0.01 km2 Tar Creek, OK. Tailings - undifferentiated. 0.01 km2 Tar Creek, OK. Tailings - undifferentiated. 0 km2 Tar Creek, OK. Tailings - undifferentiated. 0.02 km2 Tar Creek, OK. Tailings - undifferentiated. 0.01 km2 Tar Creek, OK. Tailings - undifferentiated. 0.02 km2 Tar Creek, OK. Tailings - undifferentiated. 0.05 km2 Tar Creek, OK. Tailings - undifferentiated. 0.02 km2 Tar Creek, OK. Tailings - undifferentiated. 0.01 km2 Tar Creek, OK. Tailings - undifferentiated. 0.02 km2 Tar Creek, OK. Tailings - undifferentiated. 0.01 km2 Tar Creek, OK. Tailings - undifferentiated. 0 km2 Tar Creek, OK. Tailings - undifferentiated. 0.01 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0.04 km2 Tar Creek, OK. Tailings - pond. 0.1 km2 Tar Creek, OK. Tailings - undifferentiated. 0.01 km2 Tar Creek, OK. Tailings - undifferentiated. 0 km2 Tar Creek, OK. Tailings - undifferentiated. 0.02 km2 Tar Creek, OK. Tailings - undifferentiated. 0.12 km2 Tar Creek, OK. Tailings - undifferentiated. 0.16 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0.06 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0 km2 Tar Creek, OK. Tailings - undifferentiated. 0.12 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0.09 km2 Tar Creek, OK. Tailings - undifferentiated. 0 km2 Tar Creek, OK. Tailings - undifferentiated. 0.19 km2 Tar Creek, OK. Tailings - undifferentiated. 0.23 km2 Tar Creek, OK. Tailings - pond. 0.05 km2 Tar Creek, OK. Tailings - pond. 0.1 km2 Tar Creek, OK. Tailings - undifferentiated. 0.05 km2 Tar Creek, OK. Tailings - undifferentiated. 0.05 km2 Tar Creek, OK. Tailings - undifferentiated. 0.03 km2 Tar Creek, OK. Tailings - pond. 0.03 km2 Tar Creek, OK. Tailings - undifferentiated. 0.08 km2 Tar Creek, OK. Tailings - pond. 1.26 km2 Bingham, UT. Tailings - pond. 15.73 km2 Bingham, UT. Tailings - pond. 20.8 km2 Bingham, UT. Tailings - pond. 0.2 km2 Bingham, UT. Mine dump. 0.38 km2 Bingham, UT. Mine dump. 8.4 km2 Bingham, UT. Mine dump. 4.43 km2 Bingham, UT. Mine dump. 1.2 km2 Bingham, UT. Mine dump. 1.26 km2 Bingham, UT. Mine dump. 2.3 km2 Richardson Flat, UT. Tailings - pond. 0.48 km2 International Smelting and Refining, UT. Tailings - pond. 1.31 km2 Bauer, UT. Tailings - pond. 1.13 km2 Midvale, UT. Tailings - pond. 0.7 km2 Copper Cities, AZ. Tailings - pond. 1.05 km2 Copper Cities, AZ. Leach pile - heap. 0.84 km2 Copper Cities, AZ. Tailings - pond. 0.32 km2 Sierrita-Esperanza, AZ. Tailings - pond. 14.82 km2 Morenci, AZ. Tailings - pond. 1.99 km2 Morenci, AZ. Tailings - pond. 1.59 km2 Morenci, AZ. Tailings - pond. 1.9 km2 Morenci, AZ. Tailings - pond. 1.03 km2 Morenci, AZ. Tailings - pond. 3.33 km2 Morenci, AZ. Tailings - pond. 0.98 km2 Morenci, AZ. Tailings - pond. 1.46 km2 Morenci, AZ. Leach pile - heap. 2.83 km2 Morenci, AZ. Leach pile - heap. 1.96 km2 Morenci, AZ. Leach pile - heap. 0.64 km2 Morenci, AZ. Leach pile - heap. 0.65 km2 Morenci, AZ. Leach pile - heap. 2.43 km2 Morenci, AZ. Leach pile - heap. 5.92 km2 Morenci, AZ. Leach pile - heap. 1.13 km2 Morenci, AZ. Leach pile - heap. 3.47 km2 Morenci, AZ. Leach pile - heap. 0.48 km2 Morenci, AZ. Leach pile - heap. 2.69 km2 Morenci, AZ. Leach pile - heap. 1.91 km2 Morenci, AZ. Tailings - pond. 3.22 km2 United Verde, AZ. Slag pile. 0.22 km2 United Verde, AZ. Mine dump. 0.2 km2 Bagdad, AZ. Tailings - pond. 2.28 km2 Bagdad, AZ. Tailings - pond. 5.52 km2 Bagdad, AZ. Leach pile - heap. 1.12 km2 Bagdad, AZ. Tailings - pond. 3.27 km2 Bagdad, AZ. Waste rock stockpile. 2.4 km2 Bagdad, AZ. Leach pile - dump. 2.53 km2 Bagdad, AZ. Mine dump. 2.14 km2 Bagdad, AZ. Mine dump. 0.42 km2 Bagdad, AZ. Mine dump. 0.21 km2 Safford, AZ. Leach pile - heap. 1.38 km2 Safford, AZ. Leach pile - heap. 1.43 km2 Safford, AZ. Leach pile - heap. 2.12 km2 Safford, AZ. Mine dump. 2.3 km2 Safford, AZ. Waste rock stockpile. 0.7 km2 Safford, AZ. Waste rock stockpile. 3.15 km2 Safford, AZ. Mine dump. 1.82 km2 Safford, AZ. Mine dump. 0.45 km2 Safford, AZ. Mine dump. 0.46 km2 Safford, AZ. Mine dump. 0.54 km2 Silver Bell, AZ. Tailings - pond. 2.38 km2 Silver Bell, AZ. Leach pile - heap. 1.09 km2 Silver Bell, AZ. Leach pile - heap. 0.2 km2 Silver Bell, AZ. Leach pile - heap. 0.34 km2 Silver Bell, AZ. Leach pile - heap. 0.54 km2 Silver Bell, AZ. Leach pile - heap. 0.66 km2 Silver Bell, AZ. Overburden pile. 0.29 km2 Silver Bell, AZ. Leach pile - heap. 0.87 km2 Silver Bell, AZ. Overburden pile. 0.37 km2 Silver Bell, AZ. Leach pile - heap. 0.37 km2 Silver Bell, AZ. Overburden pile. 0.38 km2 Silver Bell, AZ. Leach pile - heap. 0.37 km2 Henderson, CO. Tailings - pond. 5.64 km2 Climax, CO. Tailings - pond. 2.7 km2 Climax, CO. Tailings - pond. 2.02 km2 Lower Beaver Creek, CO. Tailings - placer. 0.51 km2 Fairplay, CO. Tailings - dredge. 1.95 km2 Alma, CO. Tailings - placer. 0.52 km2 Twin Lakes, CO. Tailings - dredge. 1.15 km2 Wilson, CO. Tailings - placer. 0.28 km2 Swan River, CO. Tailings - dredge. 0.53 km2 French Gulch, CO. Tailings - dredge. 0.32 km2 Cripple Creek and Victor, CO. Leach pile - heap. 1.98 km2 Atlantic and Pacific Mine, MT. Tailings - undifferentiated. 0.02 km2 Blacktail (Linton), MT. Mine dump. 0.01 km2 Butte Highlands Mine, MT. Mine dump. 0.02 km2 Garnet Gold Mine, MT. Tailings - mill. 0.02 km2 Golden Sunlight, MT. Mine dump. 1.98 km2 Golden Sunlight, MT. Mine dump. 0.32 km2 Golden Sunlight, MT. Mine dump. 0.9 km2 Golden Sunlight, MT. Mine dump. 1.04 km2 Golden Sunlight, MT. Tailings - pond. 1.38 km2 Hidden Lake Mill, MT. Tailings - mill. 0.02 km2 Montana Tunnels, MT. Tailings - pond. 1.07 km2 Montana Tunnels, MT. Mine dump. 1.53 km2 Regal Mine, MT. Mine dump. 0.16 km2 Tyrone, NM. Leach pile - unknown. 0.87 km2 Tyrone, NM. Leach pile - unknown. 1.08 km2 Tyrone, NM. Leach pile - unknown. 1.19 km2 Tyrone, NM. Waste rock stockpile. 0.52 km2 Tyrone, NM. Waste rock stockpile. 0.56 km2 Continental Mine, NM. Tailings - pond. 0.68 km2 Continental Mine, NM. Mine dump. 1.19 km2 Chino, NM. Tailings - pond. 0.39 km2 Chino, NM. Tailings - pond. 6.79 km2 Chino, NM. Leach pile - heap. 0.26 km2 Chino, NM. Leach pile - heap. 1.17 km2 Chino, NM. Leach pile - heap. 1.69 km2 Chino, NM. Leach pile - heap. 2.26 km2 Chino, NM. Leach pile - heap. 2.78 km2 Chino, NM. Mine dump. 0.31 km2 Chino, NM. Mine dump. 0.78 km2 Chino, NM. Tailings - undifferentiated. 0.28 km2 Chino, NM. Mine dump. 0.49 km2 Intrepid Potash, NM. Tailings - pond. 2.04 km2 Intrepid Potash, NM. Tailings - pond. 1.04 km2 Intrepid Potash, NM. Tailings - pond. 2.91 km2 HB Mine, NM. Tailings - pond. 1.03 km2 HB Mine, NM. Evaporation pond. 2.36 km2 Amax Mine, NM. Tailings - undifferentiated. 1.87 km2 Mosaic Potash Carlsbad, NM. Tailings - pond. 4.04 km2 Copper Flat, NM. Tailings - mill. 0.21 km2 Weepah, NV. Mine dump. 0.01 km2 Weepah, NV. Mine dump. 0.01 km2 Weepah, NV. Mine dump. 0 km2 Buena Vista Mine and Mill Site, NV. Mine dump. 0 km2 Buena Vista Mine and Mill Site, NV. Mine dump. 0.02 km2 Buena Vista Mine and Mill Site, NV. Mine dump. 0.01 km2 Buena Vista Mine and Mill Site, NV. Mine dump. 0.02 km2 Buena Vista Mine and Mill Site, NV. Mine dump. 0.01 km2 Buena Vista Mine and Mill Site, NV. Mine dump. 0 km2 Buena Vista Mine and Mill Site, NV. Mine dump. 0 km2 Buena Vista Mine and Mill Site, NV. Mine dump. 0 km2 Buena Vista Mine and Mill Site, NV. Mine dump. 0.01 km2 Buena Vista Mine and Mill Site, NV. Mine dump. 0.01 km2 Buena Vista Mine and Mill Site, NV. Mine dump. 0.01 km2 Pine Grove, NV. Mine dump. 0.01 km2 Pine Grove, NV. Mine dump. 0.01 km2 Pine Grove, NV. Tailings - undifferentiated. 0 km2 Paradise Peak, NV. Leach pile - heap. 0.13 km2 Paradise Peak, NV. Leach pile - heap. 0.04 km2 Paradise Peak, NV. Mine dump. 0.43 km2 Paradise Peak, NV. Tailings - mill. 0.76 km2 Ketchup Flat, NV. Mine dump. 0.33 km2 Minnesota Mine, NV. Mine dump. 0.05 km2 Minnesota Mine, NV. Mine dump. 0.11 km2 Candelaria Mine, NV. Ore stockpile/storage. 0.11 km2 Candelaria Mine, NV. Ore stockpile/storage. 0.04 km2 Mercur, UT. Tailings - pond. 0.58 km2 Lisbon Valley, UT. Leach pile - heap. 0.74 km2 Iron Mountain, UT. Mine dump. 0.27 km2 Iron Mountain, UT. Ore stockpile/storage. 0.26 km2 Iron Mountain, UT. Mine dump. 0.38 km2 Iron Mountain, UT. Mine dump. 0.23 km2 Pioche Mines, UT. Mine dump. 0.25 km2 Delta Mill, UT. Tailings - pond. 0.93 km2 Desert Mound, UT. Mine dump. 0.22 km2 Desert Mound, UT. Mine dump. 0.31 km2 Desert Mound, UT. Mine dump. 0.6 km2 Rex Peak Mines, UT. Mine dump. 0.48 km2 AZ 163 OK 110 VA 102 MT 79 NV 74 NC 69 NM 58 MI 35 UT 32 CO 17
Reachable now (144) Private, status to confirm (120) Owner not recorded (196) Federal or state land (110) Superfund listed (194)
All 764 mapped features at their recorded coordinates, with the count beside each state label. The counts matter because the dots understate density: Oklahoma’s 110 features sit almost on top of each other in one small district, so they read as a single mark. Green points are the ones we could approach today.

Access filter, applied in order

764all mapped waste features
339touch private land425 federal, state, or owner unknown
264no Superfund listing75 dropped for Superfund liability
144not reclaimed+91 unknown29 confirmed reclaimed
The 91 in the pale block have no recorded reclamation status. They are unchecked rather than disqualified, so confirming them is a research task, not a negotiation. That makes the working set 235, not 144.
Note

A working target set of 144 confirmed plus 91 to verify, against a universe of 764. Those 144 cover 171 square kilometers, which is 29% of all mapped waste area, so filtering for accessibility does not filter out the big piles.

Who controls the land, and what is listed

Ownership not recorded303
Private land only229
Mixed, includes private110
Federal or state only122
No Superfund listing Superfund listed
All four rows share one scale, so the bars are directly comparable. Features with no recorded owner are Superfund-listed at 35%, against 23% on private land, so the unknown group is dirtier than average as well as larger.
Note on the unrecorded group

303 of 764 features have no recorded land owner. That is the largest single group, larger than confirmed private land. It is not a dead end, it is the research gap, and closing it is the highest-value work available that requires no license, no negotiation, and nobody's permission.

Where and what

Distribution by state and feature type

By state

Arizona163
Oklahoma110
Virginia102
Montana79
Nevada74
North Carolina69
New Mexico58
Michigan35
Utah32
Kentucky25
Colorado17

By feature type

Mine dump237
Tailings, pond190
Tailings, unspecified153
Leach pile, heap71
Tailings, mill28
Leach pile, dump14
Overburden pile12
Slag pile11
Phosphate pond11
Ore stockpile8
Arizona alone holds 21% of all mapped features. Tailings of every kind account for 371 of 764, which matters because tailings are the form most amenable to reprocessing.

The shortlist

Largest features on private land with no Superfund listing

These are the biggest features that sit on private land, carry no Superfund listing, and are not reclaimed. Ranked by mapped area, which is a proxy for volume and not for value. Adding the composition layer is what turns this from a size ranking into a value ranking.

144 features
SiteStateFeatureStatusArea km2
Filtered by the buttons on the map above, showing the 25 largest in the current selection. Source: USGS National Mine Waste Inventory, public domain. Area is a proxy for volume, not for value, and that distinction is the reason step 1.3 exists.
Note on ownership of these features

These are large, well-known copper operations owned by major mining companies. They are the opposite of an overlooked pile nobody has valued. The thesis that waste rights are cheap because owners do not know what they hold is least likely to be true here, and most likely to be true among the 303 features whose ownership is not even recorded.

The gap in our own data

What the current data does not establish

The preceding sections draw on data held outright, which has a defined limit. The commodity field on each pile records what the mine sold. Sierrita reads copper, molybdenum, rhenium. That is the product line, not the contents of the tailings, because nobody ever assayed those piles for anything they were not already selling.

Gallium, germanium, scandium, tellurium and the rare earths are the elements of interest, and no composition data is held for any of them across these 764 features.

What our data answers

  • Which piles exist, and how big they are
  • Who controls the land under them
  • Which carry Superfund liability
  • Which are already reclaimed

Held outright. No license required.

What it cannot answer

  • What critical minerals are actually in a given pile
  • How much, and at what concentration
  • Which pile is best for one specific element
  • Whether a smaller pile beats a larger one

Requires an outside dataset not currently held.

Note on the ranking basis

That table is ranked by area, which is a proxy for volume and not for value. Ranking by size points at the largest copper operations in America, all owned by majors. Those are the most studied, most expensive, hardest-to-acquire piles in the country, and the exact place where the idea that rights are cheap because owners do not know what they hold is least likely to hold.

A ranking by contained critical-mineral value could reorder that list completely, and surface a mid-size pile sitting at position two hundred that is the better buy. On the present basis, the ranking therefore favors the largest and most established operations.

Where a composition dataset fits

A university research group has built statistical composition estimates for several hundred US metal mines, covering elements no operator ever measured. Two things make it worth a license rather than an attempt to rebuild it.

First, coverage. The 764 features belong to 172 distinct mines. The research set is materially larger, so it would both supplement the current holdings and extend beyond them.

Second, attribution. A figure attributed to a named university research group carries different weight in a federal or investor conversation than the same figure attributed to a commercial party.

Note on evaluating a sample

They have already offered a sample limited to a couple of elements or a handful of sites. Take it, run it against our 144, and see whether it reorders them. If the order changes, the license is essential and we will know what to pay for. If it does not, the dataset adds less than we have been assuming, and that is worth knowing for the price of a conversation.

Why filed technical reports are not in Phase 1

The third dataset in the chain, the one covering filed technical reports, answers whether a known project is real and financeable. That is the right question when underwriting a development-stage asset. It is the wrong question for an unassayed waste pile, because no technical report has ever been written about most of these features. That is precisely why they are still available.

It becomes relevant in Phase 2 and beyond, when a pile we control has to be presented to a funder. That license is not currently held. What was purchased previously was a pilot agent, not a data feed, and the contract has not been read. Nothing in Phase 1 depends on it, and no plan should assume it until someone opens the document.

Evidence that cuts against the obvious answers

Commercial and funding evidence

Subscription revenue to date

Orebis has published pricing at $150, $550 and $1,000 per month, and billing has been live since 15 August. As of today there are zero paying customers. Ten accounts exist and all ten are comped internal. 23 reports have ever been generated, 21 of them by Mike and one each by two colleagues. Lifetime AI spend across the whole product is $71.32.

No firm conclusion about demand should be drawn from one week of availability. As matters stand, any option assuming subscription revenue has no supporting evidence yet.

Government funding in comparable projects

Diligence reports held on comparable projects contain 65 findings about government funding across 16 reports. Every one describes money going to a physical asset. DoD took $400M of preferred equity in one producer and became its largest shareholder. One developer closed a $996M DOE loan. Another has an $800M EXIM facility still in due diligence.

Two patterns worth stating plainly: a closed federal loan is not money, because equity conditions precedent can block every draw, and in each case the private equity gap, not the federal piece, was the binding constraint.

Current federal program, awarded 18 August 2026

On 18 August 2026 the Department of Energy selected nine projects for $162 million to recover critical minerals from mine waste and industrial feedstocks, targeting scandium, copper, antimony and rare earths. The program is Mines and Metals Capacity Expansion, run by the National Energy Technology Laboratory, and it follows a roughly $1 billion announcement in August 2025.

The stated eligibility criteria are based on technology readiness level rather than on resource size or data holdings. One track funds bench scale, moving TRL 4 to 5 up to 7. The other funds pilot scale, moving TRL 6 to 7 up to 7 to 8. What qualifies an applicant is a working process.

ElementUSA has described four years and more than $30 million of process development plus the Cedar Park laboratory. On the stated eligibility criteria, the applicant for this program would be the operating company on its process rather than the database.

Alcoa was one of the five pilot-scale selections. Alcoa is a bauxite-residue party, and our diligence file separately records another federally backed party pursuing gallium recovery at the same site.

Private capital structures and comparable activity

Every investment vehicle found in this sector prices against production. A $1 billion critical minerals fund launched by a specialist manager with the IFC deploys equity, credit and royalty into construction, production and expansion. The closest analogue to a government-backed platform investor holds a portfolio of producing and late-stage development assets, funded by $105 million of federal equity, with a stated focus on reaching commercial production before investing further.

No vehicle was found that finances an information product. The search covered the vehicles named above and is not exhaustive.

On timing: a tailings recovery company has raised a $43 million Series B from two automotive strategics and is producing rare earths at 200 tonnes a year, and several other seed-stage companies were funded through late 2025 and early 2026 on waste-feedstock approaches. The one-to-two-year window is an assumption, and on this evidence the recovery-technology side of it is already contested. No funded example of the targeting layer itself was found. That may indicate an unserved gap, or that buyers do not pay for it separately. The available evidence does not distinguish between those readings.

The precedent

The Gramercy project as a reference case

ElementUSA is advancing a critical-minerals project at Gramercy using bauxite residue as feedstock, aiming at gallium, scandium, rare earths and a list of co-products. It is the closest available template for what has to exist before public money arrives.

SupportAmountStatus
Defense Production Act Title III, DoD$29.9Mverified officially announced, gallium and scandium demonstration
DOE award with Colorado School of Mines$67Mclaimed company-announced, terms to confirm
Louisiana performance-based grant$6Mclaimed utility and infrastructure, performance terms
State programs and tax-exempt bondsnot statedassumed anticipated participation, confirm availability
Louisiana investment decision~$850Mclaimed state announcement, staged path to ~1Mt per year

The two federal awards sum to $96.9 million, which matches the figure independently recorded in our own diligence reports from a separate source. Two independent sources give the same total. The awards do not fund the commercial facility; they support validation, demonstration and de-risking ahead of a larger financing.

Observation on sequence

In the Gramercy case, government support followed the assembly of a defined resource, secured rights, technical work, a scale-up plan and identified end markets. Separately, the current federal program for mine-waste recovery gates eligibility on technology readiness level, meaning a working process at bench or pilot scale. On both the Gramercy sequence and the stated program criteria, the qualifying asset appears to be the process and the defined project rather than the database.

Colorado School of Mines is already a partner on the $67M DOE award, so an academic validation relationship exists institutionally rather than needing to be created.

The program

Proposed staged program

The memo proposes testing whether Orbis can originate one commercially credible project, rather than working the whole database or assigning it a value before anything is validated. Every gate has a named owner, a budget, a deliverable and a written go or no-go.

Gate 1Rank an initial portfolio8 to 12 sites

Diversified deliberately, not ranked on pile size alone. Criteria include likely mineral relevance, volume and continuity, clarity of land, waste and mineral rights, whether samples can be taken legally and safely, infrastructure, environmental context, fit with our own laboratory strengths, multi-product potential, and fit with current federal priorities.

Note the constraint: we hold no composition data, so likelihood of useful grades cannot be scored today. Diversification on commodity, feature type, land status and geography is available now. Grade likelihood is where outside data or an assay enters.

Gate 2Desktop diligence8-12 to 5-6

Verify ownership, regulatory status, historical production, prior assays, waste volume, infrastructure and owner receptivity before anyone travels. Advance only where ownership is traceable, sampling looks feasible and no fatal flaw appears.

Gate 3Secure access and protection5-6 sites

Before meaningful spend or any disclosure of a favorable thesis. Full acquisition is not required. Sampling permission, confidentiality, an exclusive evaluation period, a right of first negotiation, an option, or a pre-agreed commercial framework. The agreement must also cover ownership and permitted use of results, samples, process IP and data.

This step addresses how material can be tested without acquiring the pile, and before results change an owner's expectations.

Gate 4Sampling and laboratory work5-6 to 2-3

A defensible sampling plan with locations, mass, representativeness and chain of custody, then characterization at Cedar Park. Elemental content and mineralogical form, particle size and liberation, variability across the waste body, preliminary recovery response, and early reagent, energy, water and residue requirements.

Gate 5Develop the best candidates2-3 sites

Preliminary flowsheet and a screening-level project case for each. Colorado School of Mines where independent characterization, validation or credibility materially strengthens the work.

Gate 6Select the lead1-2 projects

Not on assay results alone. The package needs verified feedstock volume and access rights, assay and mineralogy with variability, preliminary recovery results, expected products and likely customers, screening-level capital and operating ranges, environmental and permitting considerations, and a costed work plan with milestones.

Gate 7Seek project funding1-2 projects

The pitch is a defined project, never the size of the database. Federal and state money for characterization, engineering, pilot and demonstration. Strategic investors for offtake and product qualification. Private equity later, for development and construction. Resource owners contributing access for royalty or participation.

PeriodActivityDecision
Weeks 1-3Confirm criteria, rank 8-12 sites, begin ownership and technical diligenceSelect candidates for owner contact
Weeks 3-7Owner outreach, access agreements, sampling plansAuthorise sampling on protected sites
Weeks 6-12Representative sampling and laboratory characterizationReduce to technically promising candidates
Weeks 10-16+Recovery testing, flowsheets, commercial screeningChoose one or two lead projects

assumed The 90 to 120 day timing depends on owner responsiveness, sampling permissions, travel, laboratory capacity and how difficult the materials turn out to be. None of those has been tested.

Risks

Risks and proposed controls

RiskWhy it mattersControl
Database overreachAccessibility and pile size do not establish valueUse Orbis for screening only; require physical validation before any economic claim
Sampling biasA favorable grab sample may not represent the waste bodyQualified sampling plans, multiple locations, documented chain of custody
Rights leakageGood results raise owner expectations and attract competitorsConfidentiality and evaluation rights before spend or disclosure
Technical recoveryA mineral can be present but locked in a form too costly to recoverCharacterize mineralogy and test recovery before advancing
Environmental liabilityHistoric waste can carry remediation and permitting exposureDefine responsibility contractually; site-specific diligence. 194 of 764 features are Superfund-listed
Premature funding approachAssays alone will not support a credible requestAdd flowsheet, rights, scale-up plan, economics and end markets first
Promotional positioningOverstatement weakens credibility with agencies and investorsSeparate verified facts, company claims, assumptions and open questions, as this page does
IP ambiguityDisputes over Orbis, site data and new process IPAgree ownership, licensing and economics before the pilot begins

Decisions requested

Decisions requested before Gate 1

  1. Approve the premise: Orbis is a project-origination tool, not a product to be marketed broadly.
  2. Approve an initial portfolio of 8 to 12 sites and a target of 5 to 6 sampling candidates.
  3. Name the ElementUSA technical, legal and commercial, and government-funding leads.
  4. Set an initial budget and spending authority by stage.
  5. Define the minimum access protections required before any sampling.
  6. Confirm ownership and economics among Michael, Orbis, ElementUSA and any project entities.
  7. Approve a written go or no-go after desktop diligence, and again after laboratory results.
Note on Decision 6

Who owns Orbis today, and what role, economics and authority would Michael hold within ElementUSA? No record reviewed answers this. The memo asks for it to be confirmed before the program begins.

The opportunity nobody priced

Federal ranking standard under development

Colorado School of Mines runs a federally funded international program on critical minerals from mine waste. They are currently writing the standard procedure the government will use to decide which waste sites deserve public money, and they have said they want commercial operators to tell them what actually drives a real investment decision.

A scoring rule decides where funding goes. If it weights tonnage and element count, money flows to the biggest piles. If it weights recoverability with proven technology, existing infrastructure, permitted sites and a demonstrated flowsheet, that describes ElementUSA and very few others. Same dollars, different destination.

This is not lobbying for a contract. It is helping write the test we will later be graded on, at the invitation of the people writing it. It costs hours, needs no data license, and builds the federal relationship Phase 2 depends on.

Honest assessment

Conditions that would invalidate the approach

Open questions

Open questions

01

What does the composition paper actually publish?

If it includes the site-level results, every exclusive arrangement is worth far less within a year, and the whole timeline compresses. If it publishes the method only, the asset survives. One question settles it and it changes the value of every option on this page.

Owner: Mike · Blocking: the value of Phase 2 · Cost to answer: one conversation

02

Who actually owns the composition dataset?

The researcher believes it is hers. That is a reasonable reading of her own grant, not a determination. The university technology transfer office decides this, and every structure that could pay her depends on the answer.

Owner: Mike and Ellis · Blocking: step 1.3 and all of Phase 2

03

What did we actually buy from the technical-report vendor?

We have assumed data and API access three separate times. What was purchased appears to have been a pilot agent, not a data license. The contract has been sitting unread since 12 August. Nothing in Phase 1 depends on it, but our credibility with partners does.

Owner: Chris · Blocking: nothing in Phase 1 · Cost to answer: read one document

04

Where does the capital for rights acquisition come from?

The weakest point in the plan. Every step before 1.5 is analysis, and analysis does not secure a pile. We have not scoped what an option or lease costs, who negotiates it, or which balance sheet it sits on.

Owner: unassigned · Blocking: step 1.5, which is the entire point

05

Are we building a cost center or a fundable company?

If this capability serves ElementUSA, the returns show up as better projects and there is nothing to raise against. If it is a standalone business, it needs outside revenue, which means selling access, which undoes the strategy above. Both are defensible. Doing neither deliberately is not.

Owner: Mike, Rick and Ellis · Blocking: everything downstream