Mining Incidents
Abandoned mine inventory

Abandoned mines in Marion County, Tennessee

Marion County, Tennessee has 409 mine and prospect features on USGS topographic maps published 1936–1983, including 149 mine openings (shafts, adits and air shafts); 10 of the features carry a name on the map. OSMRE's abandoned mine land inventory lists 70 problems in the county, 55 of them not yet reclaimed. MSHA's register carries 122 mines in the county with status Abandoned or Abandoned and Sealed.

Every mine and prospect feature the USGS digitized from historical topographic maps covering Marion County, every OSMRE abandoned mine land problem in the county, and every MSHA-registered mine here with status Abandoned. Named features are listed below; unnamed ones are counted by type. Locations are deliberately not shown: this page says what abandoned workings are in the county, not where to find them. They are dangerous and should not be entered.

Mapped mine features (USGS)
409
Mine openings
149
OSMRE problems unreclaimed
55
MSHA mines marked abandoned
122
10 features carry a name0 prospect pits17 quadrangle maps, published 1936–1983 70 OSMRE problems, 15 reclaimed 30 MSHA mines abandoned and sealed
What the features are
  1. Mine openings
    shafts, adits, air shafts, portals and vertical openings: the ways into underground workings
    166 34.7%
  2. Mines and surface workings
    labelled mines, open pits, strip mines, placer and hydraulic workings
    251 52.4%
  3. Quarries, gravel and borrow pits
    construction-material and industrial-mineral extraction
    9 1.9%
  4. Dumps, tailings, spoil and gob
    what mining left above ground
    22 4.6%
  5. Mills, tipples and facilities
    processing plants and hazardous structures
    1 0.2%
  6. Other reclamation problems
    highwalls, subsidence, polluted or clogged water, fires, slides and gases in OSMRE's inventory
    30 6.3%
Named features on the maps10 named · from the USGS compilation
Name on map Feature
Battle Creek Mine Open Pit Mine
Battle Creek Mine Open Pit Mine
Battle Creek Mine Open Pit Mine
Battle Creek Mine Open Pit Mine
Battle Creek Mine Open Pit Mine
Bolten Mine Strip Mine
Bolten Mine Strip Mine
Bolten Mine Strip Mine
Reel Cove Mine Open Pit Mine
Whitwell Mine Open Pit Mine

A name is the label printed beside the symbol on the map. "First mapped" is the earliest topographic edition that shows the symbol, which bounds the feature's age from above; it is not the date it was worked. Unnamed features (most prospect pits, adits and shafts carry no label) are in the counts above but not this list.

OSMRE abandoned mine land problems70 on inventory
Problem area Problem Status
Bear Pen Gulf P2 Portals Reclamation Pending
Bear Pen Gulf P3 High Wall Reclamation Pending
Bear Pen Gulf P3 Mine Opening Reclamation Pending
Bear Pen Gulf P3 Spoil Area Reclamation Pending
Big Hill P3 Pits Reclamation Pending
Big Hill P3 Spoil Area Reclamation Pending
Bone Ridge P3 Pits Reclamation Pending
Bone Ridge P3 Spoil Area Reclamation Pending
Brown Hollow P3 Pits In Reclamation
Brown Hollow P3 Spoil Area In Reclamation
Campbell Hollow P1 Dangerous Highwalls Reclamation Completed
Crawdad Creek P3 Pits Reclamation Pending
Crawdad Creek P3 Spoil Area Reclamation Pending
Davis Point P2 Portals Reclamation Completed
Davis Point P3 Spoil Area Reclamation Completed
Denny Cove P2 Hazardous Equip & Facilities Reclamation Pending
Denny Cove P2 Portals Reclamation Completed
Denny Cove P2 Portals Reclamation Pending
Denny Cove P2 Vertical Openings Reclamation Completed
Denny Cove P3 Gobs Reclamation Pending
Denny Cove P3 Spoil Area Reclamation Completed
Dixon Cove P3 Mine Opening Reclamation Pending
Dixon Cove P3 Pits Reclamation Pending
Dixon Cove P3 Spoil Area Reclamation Pending
Gilliam P2 Portals Reclamation Pending
Gourdneck Cove P2 Portals Reclamation Pending
Gourdneck Cove P3 Gobs Reclamation Pending
Gourdneck Cove P3 High Wall Reclamation Pending
Inman Point P2 Portals Reclamation Completed
Little Gizzard Creek P3 Pits Reclamation Pending
Little Gizzard Creek P3 Spoil Area Reclamation Pending
Long Branch P3 Pits Reclamation Pending
Long Branch P3 Spoil Area Reclamation Pending
Mike's Branch P2 Portals Reclamation Completed
Mike's Branch P3 Haul Road Reclamation Pending
North Lick Point P3 Pits Reclamation Pending
North Lick Point P3 Spoil Area Reclamation Pending
North Long Ridge P3 Pits Reclamation Pending
North Long Ridge P3 Spoil Area Reclamation Pending
North Pryor Ridge P3 Pits Reclamation Pending
North Pryor Ridge P3 Spoil Area Reclamation Pending
Old Shop Hollow P2 Portals Reclamation Pending
Old Shop Hollow P3 Gobs Reclamation Pending
Pine Hill P2 Portals Reclamation Pending
Pocket Creek P2 Portals Reclamation Pending
Pre 87 P2 Dangerous Piles & Embankments Reclamation Completed
Racoon Mountain P3 Bench Reclamation Pending
Racoon Mountain P3 Pits Reclamation Pending
Racoon Mountain P3 Spoil Area Reclamation Pending
Sam's Branch P2 Dangerous Highwalls In Reclamation
Sam's Branch P3 Gobs Reclamation Pending
Sam's Branch P3 Pits Reclamation Pending
Sam's Branch P3 Pits Reclamation Completed
Sam's Branch P3 Spoil Area Reclamation Pending
Sawmill Creek P2 Dangerous Highwalls Reclamation Completed
Sawmill Creek P2 Portals Reclamation Completed
Sawmill Creek P2 Portals Reclamation Pending
Sawmill Creek P2 Vertical Openings Reclamation Pending
South Lick Point P3 Pits Reclamation Pending
South Lick Point P3 Spoil Area Reclamation Pending
South Pryor Ridge P3 Pits Reclamation Pending
South Pryor Ridge P3 Spoil Area Reclamation Pending
Suck Creek P2 Dangerous Highwalls Reclamation Completed
Suck Creek P3 High Wall Reclamation Completed
Suck Creek P3 Pits Reclamation Completed
Upper Pocket P2 Portals In Reclamation
Whitwell Mine P2 Hazardous Water Bodies Reclamation Pending
Whitwell Mine P2 Portals Reclamation Pending
Whitwell Mine P3 Equipment Facility Reclamation Pending
Whitwell Mine P3 Slurry Reclamation Pending

Problem types carry OSMRE's priority prefix: P1 and P2 are threats to health, safety and property, P3 is environmental. A problem area is a cluster of problems reclaimed as one project; several rows can share one location.

MSHA-registered mines with status Abandoned122 on register
  1. #1 Mine
    Underground coal · Wynne Coal Company · MSHA ID 4000717
    Abandoned
  2. #2 Mine Ug
    Underground coal · Blue Springs Coal Company · MSHA ID 4000364
    Abandoned
  3. #52
    Underground coal · Watts Mining Company Inc · MSHA ID 4003005
    Abandoned and Sealed
  4. 16-1
    Underground coal · G & S Coal Company · MSHA ID 4002728
    Abandoned and Sealed
  5. Aetna No 1
    Underground coal · Colonel Lawrence Coal Company Inc · MSHA ID 4002706
    Abandoned and Sealed
  6. Area #13
    Surface coal · Big Fork Mining Company Inc · MSHA ID 4002887
    Abandoned
  7. Area No 1 Surface
    Surface coal · Maiden Coal Company Inc · MSHA ID 4002475
    Abandoned
  8. Area No 4 Strip
    Surface coal · Big Fork Mining Company Inc · MSHA ID 4002389
    Abandoned
  9. Area No 5 Strip
    Surface coal · James Earl Nunley Coal Company · MSHA ID 4002231
    Abandoned
  10. Bee Branch 17-1
    Underground coal · V & E Coal Company Inc · MSHA ID 4002428
    Abandoned and Sealed
  11. Big Ridge Strip
    Surface coal · Sycamore Mining Company · MSHA ID 4002288
    Abandoned
  12. Bone No 3 Strip
    Surface coal · Bone Coal Company Inc · MSHA ID 4002088
    Abandoned
  13. C Ug Mine
    Underground coal · Buck Layne Coal Company · MSHA ID 4000730
    Abandoned
  14. Cave Cove Stone
    Surface metal/non-metal · Cave Cove Stone LLC · MSHA ID 4003491
    Abandoned
  15. Clayton Camp Mine
    Underground coal · Clayton Camp Coal Company · MSHA ID 4003061
    Abandoned and Sealed
  16. D & B No 2
    Underground coal · D & B Mining Inc · MSHA ID 4000366
    Abandoned and Sealed
  17. DeLeon Stone
    Surface metal/non-metal · DeLeon Stone, LLC · MSHA ID 4003532
    Abandoned
  18. Donald Nunley
    Underground coal · D & B Mining Inc · MSHA ID 4002364
    Abandoned and Sealed
  19. Dry Creek
    Surface metal/non-metal · Dry Creek Farms LLC · MSHA ID 4003525
    Abandoned
  20. Dry Creek Farms LLC
    Surface metal/non-metal · Dry Creek Farms LLC · MSHA ID 4003432
    Abandoned
  21. Fiery Gizzard Stone
    Surface metal/non-metal · Fiery Gizzard Stone, LLC · MSHA ID 4003600
    Abandoned
  22. Flores Quarry #4
    Surface metal/non-metal · Flores Stone LLC · MSHA ID 4003578
    Abandoned
  23. Flores Stone quarry#5
    Surface metal/non-metal · Flores Stone LLC. · MSHA ID 4003590
    Abandoned
  24. G C No 10 Mine
    Underground coal · John Stephenson Coal Company · MSHA ID 4000570
    Abandoned
  25. G C No 3 Ug
    Underground coal · H & L Coal Company Inc · MSHA ID 4000378
    Abandoned
  26. G C No 4 Ug
    Underground coal · Gravitt Coal Company · MSHA ID 4000377
    Abandoned
  27. Grays Creek Fieldstone
    Surface metal/non-metal · Seven Springs Stone · MSHA ID 4003558
    Abandoned
  28. Greentown Operation
    Surface metal/non-metal · Kelly Grimes Stone · MSHA ID 4003573
    Abandoned
  29. Jasper Highlands Quarry
    Surface metal/non-metal · Thunder Air Inc. · MSHA ID 4003460
    Abandoned
  30. Jasper Job
    Surface metal/non-metal · Thomas Brothers · MSHA ID 4002601
    Abandoned
  31. JASPER SAND PLANT
    Surface metal/non-metal · Vulcan Constr. Materials, L.P. · MSHA ID 4002985
    Abandoned
  32. Marion No 1
    Surface coal · A I M E E · MSHA ID 4002464
    Abandoned
  33. Marion Quarry
    Surface metal/non-metal · Vulcan Materials Company · MSHA ID 4000113
    Abandoned
  34. Mayfield Quarry
    Surface metal/non-metal · Melco-Greer Inc · MSHA ID 4002935
    Abandoned
  35. Mine 1-2 Barnwell Coal Co
    Surface coal · Barnwell Coal Company · MSHA ID 4002413
    Abandoned
  36. Mine No 21
    Underground coal · Grundy Mining Company Inc · MSHA ID 4000524
    Abandoned and Sealed
  37. Mine No 35
    Underground coal · Lad Mining Inc · MSHA ID 4002839
    Abandoned and Sealed
  38. Morganville Mtn Strip Mine No 1
    Surface coal · Grundy Mining Company Inc · MSHA ID 4002810
    Abandoned
  39. Morganville Strip Mine No 4
    Surface coal · Tennessee Consolidated Coal Company · MSHA ID 4002984
    Abandoned
  40. Murphy Strip
    Surface coal · Murphy Mountain Mining Inc · MSHA ID 4002348
    Abandoned
  41. No 1
    Underground coal · Bill Byers & Clint Oliver · MSHA ID 4000368
    Abandoned and Sealed
  42. No 1
    Underground coal · Kilgore Coal Company · MSHA ID 4001807
    Abandoned
  43. No 1
    Underground coal · Hawkeye Elkhorn Coal Company Inc · MSHA ID 4001829
    Abandoned
  44. No 1
    Surface coal · Caldwell Coal Company · MSHA ID 4002533
    Abandoned
  45. No 1
    Underground coal · Eagle Mining Company · MSHA ID 4002556
    Abandoned
  46. No 1
    Underground coal · R & M Mining Company Inc · MSHA ID 4002657
    Abandoned and Sealed
  47. No 1
    Underground coal · Bolton Point Coal Company · MSHA ID 4002663
    Abandoned and Sealed
  48. No 1
    Underground coal · Lilly Rose Coal Company · MSHA ID 4002695
    Abandoned and Sealed
  49. No 1
    Underground coal · J B C Coal Company · MSHA ID 4002700
    Abandoned and Sealed
  50. No 1
    Underground coal · Donnie Mabe Coal Company · MSHA ID 4002743
    Abandoned and Sealed
  51. No 1
    Underground coal · Edwin Campbell Coal Company · MSHA ID 4002923
    Abandoned and Sealed
  52. No 1 Dock
    Facility coal · Serodino Inc · MSHA ID 4002388
    Abandoned
  53. No 1 Mine
    Underground coal · Gravitt Coal Company Inc · MSHA ID 4000719
    Abandoned
  54. No 1 Mine
    Underground coal · Earl Patton Coal Company Inc · MSHA ID 4001602
    Abandoned
  55. No 1 Mine
    Underground coal · C & S Coal Company · MSHA ID 4001677
    Abandoned
  56. No 1 Mine
    Underground coal · Darwin Shipley Coal Company · MSHA ID 4001694
    Abandoned
  57. No 1 Mine
    Underground coal · Pocket Coal Company · MSHA ID 4001726
    Abandoned
  58. No 1 Mine
    Underground coal · Mc Hone Coal Company · MSHA ID 4001730
    Abandoned
  59. No 1 Mine
    Underground coal · M & B Coal Company · MSHA ID 4001791
    Abandoned
  60. No 1 Mine
    Underground coal · Whiteside Coal Company · MSHA ID 4001806
    Abandoned
  61. No 1 Mine
    Underground coal · Black Diamond Coal Company Inc · MSHA ID 4002230
    Abandoned and Sealed
  62. No 1 Mine
    Underground coal · A C Wells Coal Company · MSHA ID 4002284
    Abandoned
  63. No 1 Mine
    Underground coal · Wade Kilgore Coal Company · MSHA ID 4002285
    Abandoned
  64. No 1 Mine
    Underground coal · Meeks & Campbell Coal Company · MSHA ID 4002683
    Abandoned
  65. No 1 Mine
    Underground coal · Gaines Coal Company · MSHA ID 4002686
    Abandoned
  66. No 1 Mine
    Underground coal · Gaines Coal Company · MSHA ID 4099992
    Abandoned
  67. No 1 Mine
    Underground coal · Meeks & Campbell Coal Company · MSHA ID 4099993
    Abandoned
  68. No 1 Strip
    Surface coal · James Earl Nunley Coal Company · MSHA ID 4001769
    Abandoned
  69. No 1 Strip
    Surface coal · Alabama-Georgia Mining Company Inc · MSHA ID 4001931
    Abandoned
  70. No 1 Strip
    Surface coal · Big Fork Mining Company Inc · MSHA ID 4001974
    Abandoned
  71. No 1 Strip
    Surface coal · Gary L Little & Associates · MSHA ID 4001983
    Abandoned
  72. No 1 Strip
    Surface coal · Conrad Coal Company · MSHA ID 4002063
    Abandoned
  73. No 1 Strip
    Surface coal · Jocol Inc · MSHA ID 4002103
    Abandoned
  74. No 1 Strip
    Surface coal · Jackson Mining Company · MSHA ID 4002122
    Abandoned
  75. No 1 Strip
    Surface coal · Big Ridge Coal Company · MSHA ID 4002194
    Abandoned
  76. No 1 Strip
    Surface coal · Cole & Watts Coal Company · MSHA ID 4002387
    Abandoned
  77. No 1 Underground Mine
    Underground coal · M & W Coal Company Inc · MSHA ID 4002844
    Abandoned and Sealed
  78. No 1-A Mine
    Underground coal · K & G Coal Company · MSHA ID 4000571
    Abandoned
  79. No 11 Mine
    Underground coal · James Earl Nunley Coal Company · MSHA ID 4000404
    Abandoned
  80. No 18
    Underground coal · Virginia Mining Company Inc · MSHA ID 4000405
    Abandoned and Sealed
  81. No 19 Ug Mine
    Underground coal · Chester Meeks Coal Company · MSHA ID 4000392
    Abandoned
  82. No 2
    Underground coal · Dunwoody Coal Company · MSHA ID 4002863
    Abandoned and Sealed
  83. No 2 Mine
    Underground coal · Lynn Coal Company · MSHA ID 4000572
    Abandoned
  84. No 2 Mine
    Underground coal · C & S Coal Company · MSHA ID 4002225
    Abandoned
  85. No 2 Strip
    Surface coal · Petroleum Engineering Services Inc · MSHA ID 4002033
    Abandoned
  86. No 26
    Underground coal · Watts Mining Company Inc · MSHA ID 4003024
    Abandoned and Sealed
  87. No 26 Mine
    Underground coal · Shipley Coal Co · MSHA ID 4001613
    Abandoned
  88. No 29
    Underground coal · Marion Coal Company Inc · MSHA ID 4001582
    Abandoned and Sealed
  89. No 3 Strip
    Surface coal · Allen Coal Company · MSHA ID 4002053
    Abandoned
  90. No 32
    Underground coal · Double B Mining Inc · MSHA ID 4002666
    Abandoned and Sealed
  91. No 33
    Underground coal · S & W Coal Company Inc · MSHA ID 4002704
    Abandoned and Sealed
  92. No 36 Ug
    Underground coal · Mary Lee Coal Company Inc · MSHA ID 4000390
    Abandoned
  93. No 4
    Underground coal · Lilly Rose Coal Company · MSHA ID 4002203
    Abandoned and Sealed
  94. No 44
    Underground coal · Saylors Mining Inc · MSHA ID 4002770
    Abandoned and Sealed
  95. No 5
    Underground coal · M & M Coal Company · MSHA ID 4000608
    Abandoned
  96. No 50
    Underground coal · Wade Kilgore Coal Company · MSHA ID 4002691
    Abandoned and Sealed
  97. No 6 Strip
    Surface coal · Paul Cole Coal Company · MSHA ID 4002037
    Abandoned
  98. No 62
    Underground coal · New Hope Mining Inc · MSHA ID 4002983
    Abandoned and Sealed
  99. No 63 Ug
    Underground coal · Gob Coal Company · MSHA ID 4000376
    Abandoned
  100. No 9 Strip Mine
    Surface coal · Russell Mining Company · MSHA ID 4000831
    Abandoned
  101. Northwest S M No 2
    Surface coal · Northwest Coal Company Inc · MSHA ID 4002326
    Abandoned
  102. Oakhill No 8
    Underground coal · Oakhill Coal Company · MSHA ID 4000395
    Abandoned
  103. Old Tram Mine
    Underground coal · Bradley Mount Jr Coal Company · MSHA ID 4002977
    Abandoned and Sealed
  104. Orme Mine No 1
    Underground coal · Blue Ridge Mining Company Inc · MSHA ID 4002489
    Abandoned
  105. Orme Mt Mine
    Surface metal/non-metal · Antonio Lugo Tristan · MSHA ID 4003489
    Abandoned
  106. Pine Quarry
    Surface metal/non-metal · Montes Stone Products, LLC · MSHA ID 4003436
    Abandoned
  107. Pocket Rd Mine
    Surface metal/non-metal · Real Stone Veneers of TN LLC · MSHA ID 4003493
    Abandoned
  108. Richard City Quarry
    Surface metal/non-metal · Vulcan Construction Materials, LLC · MSHA ID 4000077
    Abandoned
  109. Richard City Underground/Surface
    Underground metal/non-metal · Vulcan Constr. Materials, L.P. · MSHA ID 4003132
    Abandoned
  110. River Dock
    Facility coal · Tennessee Consolidated Coal Company · MSHA ID 4003166
    Abandoned
  111. Round Mountain Mining Co Inc
    Surface coal · Round Mountain Mining Company Inc · MSHA ID 4003086
    Abandoned
  112. SOUTH PITTSBURG PLANT
    Surface metal/non-metal · Vulcan Constr. Materials, L.P. · MSHA ID 4002233
    Abandoned
  113. South Pittsburg Stone
    Surface metal/non-metal · South Pittsburg Stone · MSHA ID 4003486
    Abandoned
  114. South Pittsburg Stone #2
    Surface metal/non-metal · South Pittsburg Stone · MSHA ID 4003591
    Abandoned
  115. Surface
    Surface coal · James Earl Nunley Coal Company · MSHA ID 4002678
    Abandoned
  116. Tccc No 45
    Underground coal · Thomas Coal Company Inc · MSHA ID 4002840
    Abandoned and Sealed
  117. Ten-Al #4 Mine
    Underground coal · Ten-Al Coal Company Inc · MSHA ID 4002514
    Abandoned
  118. Ten-Al No 3 Mine
    Underground coal · Ten-Al Coal Company Inc · MSHA ID 4000657
    Abandoned
  119. Tenn - Al 2 Mine
    Underground coal · Ten-Al Coal Company Inc · MSHA ID 4002422
    Abandoned
  120. Thomas And Associates
    Surface metal/non-metal · Thomas & Associates · MSHA ID 4002518
    Abandoned
  121. Weeks Quarry
    Surface metal/non-metal · United Stone LLC · MSHA ID 4003434
    Abandoned
  122. Whitwell Yard Mine
    Facility metal/non-metal · Real Stone Veneers of Tennessee · MSHA ID 4003499
    Abandoned

Status and date are as reported to MSHA by the operator. Each mine's own page carries its accident, citation and inspection record.

By source vocabularythe publishers' own terms
Feature type Features
Adit 149
Open Pit Mine or Quarry 140
Strip Mine 67
Strip Mine 28
P3 Spoil Area 17
P3 Pits 16
P2 Portals 15
Open Pit Mine 15
Quarry 5
Quarry 4
P3 Gobs 4
P2 Dangerous Highwalls 3
P3 High Wall 3
P2 Vertical Openings 2
P3 Mine Opening 2
P1 Dangerous Highwalls 1
P2 Dangerous Piles & Embankments 1
P3 Slurry 1
P2 Hazardous Water Bodies 1
Disturbed Surface 1
P3 Equipment Facility 1
P3 Haul Road 1
P2 Hazardous Equip & Facilities 1
P3 Bench 1
Other counties in TennesseeAll counties →
How to read these numbers

A USGS feature is a symbol on a historical topographic map, there when the map was surveyed; it may since have been sealed, reclaimed, built over or reopened as a working mine, and the map does not say which. An OSMRE row is a problem the abandoned mine land program tracks, not a mine. An MSHA mine is a registered operation whose operator reported abandonment, a record that starts in the 1970s. The three overlap and are never added together. The county is assigned from each feature's coordinates against the Census 2023 county boundaries. The full method is on the national page.

Sources
  1. USGS, Consolidated Prospect- and Mine-Related Features from 7.5- and 15-Minute Topographic Quadrangle Maps of the United States (USMIN)
    597,612 point and area features digitized from about 106,350 historical topographic maps published 1886–2006; public domain (CC0). A feature is a map symbol, not a field-verified site, and the map does not say whether it was still worked.
  2. USGS Fact Sheet 2025–3003, The Abandoned Mine Inventory of the United States
    States that as of 2025 there is no comprehensive national inventory of abandoned mine features, and that the detailed national database now being built will not be published.
  3. OSMRE, Abandoned Mine Land Inventory System (e-AMLIS), public Problems layer
    One row per abandoned mine land problem in a problem area, with its type, funding program and reclamation status; mostly coal mined before the 1977 Surface Mining Control and Reclamation Act. Coordinates are the problem area's.
  4. MSHA, Mines dataset (Mine Data Retrieval System)
    Every mine registered with MSHA since the 1970s; a mine reads Abandoned or Abandoned and Sealed when its operator reported that status. Refreshed weekly.
  5. US Census Bureau, 2023 cartographic county boundaries (1:500,000)
    Each feature's county is assigned by its coordinates against these boundaries, not copied from the source file.
  6. GAO-20-238, Abandoned Hardrock Mines (March 2020)
    Federal agencies had identified at least 140,000 abandoned hardrock mine features on federal land and estimated more than 390,000 more not yet captured in their databases.
  7. Abandoned Hardrock Mine Reclamation (AHMR) Program, US Department of the Interior
    The program the USGS inventory is compiled for. Its appropriations and the 674,000 field-confirmed feature count on this page were provided by the program manager, Office of Environmental Policy and Compliance, and are cited with permission (2026-09-08).
  8. IMCC-NAAMLP Hardrock AML Report
    Page 48 carries the two figures this page leans on: USGS estimates 633,181 of the 725,690 mine features it recorded from historic topographic maps, 87 percent, are hardrock; and state and federal agencies have submitted more than 724,000 AML features to the national database being built, already more than the historic maps hold. Year-by-year AHMR funding is on page 35.