Mining Incidents
Abandoned mine inventory

Abandoned mines in Stark County, Ohio

Stark County, Ohio has 418 mine and prospect features on USGS topographic maps published 1901–1994, including 6 mine openings (shafts, adits and air shafts); 5 of the features carry a name on the map. OSMRE's abandoned mine land inventory lists 204 problems in the county, 89 of them not yet reclaimed. MSHA's register carries 74 mines in the county with status Abandoned or Abandoned and Sealed.

Every mine and prospect feature the USGS digitized from historical topographic maps covering Stark 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)
418
Mine openings
6
OSMRE problems unreclaimed
89
MSHA mines marked abandoned
74
5 features carry a name0 prospect pits21 quadrangle maps, published 1901–1994 204 OSMRE problems, 115 reclaimed 0 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
    57 9.2%
  2. Mines and surface workings
    labelled mines, open pits, strip mines, placer and hydraulic workings
    334 53.7%
  3. Quarries, gravel and borrow pits
    construction-material and industrial-mineral extraction
    62 10.0%
  4. Dumps, tailings, spoil and gob
    what mining left above ground
    25 4.0%
  5. Mills, tipples and facilities
    processing plants and hazardous structures
    2 0.3%
  6. Other reclamation problems
    highwalls, subsidence, polluted or clogged water, fires, slides and gases in OSMRE's inventory
    142 22.8%
Named features on the maps5 named · from the USGS compilation
Name on map Feature
Eureka Mine Open Pit Mine
Fox Mine Mine Shaft
Fox Mine Open Pit Mine
Slag Dump Slag Pile
Tiger 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 problems204 on inventory
Problem area Problem Status
Alabama Ave Subsidence P1 Subsidence Reclamation Completed
Alabama Avenue P1 Subsidence Reclamation Completed
Aultman P1 Subsidence Reclamation Completed
Aultman P1 Subsidence Reclamation Pending
Aultman P1 Vertical Openings Reclamation Pending
Aultman P2 Portals Reclamation Completed
Aultman P2 Vertical Openings Reclamation Pending
Aultman P3 Other Reclamation Pending
Behringer Subsidence P1 Subsidence Reclamation Completed
Bellway Avenue P2 Clogged Stream Lands Reclamation Pending
Bellway Avenue P2 Dangerous Highwalls Reclamation Pending
Bitzer Street Subsidence P1 Subsidence Reclamation Completed
Blake Petty Subsidence P1 Subsidence Reclamation Completed
Boord Subsidence P1 Subsidence Reclamation Completed
Bowmont Rd W P2 Polluted Water: Human Consumption In Reclamation
Bowmont Rd W P3 Spoil Area In Reclamation
Briggle Avenue P2 Dangerous Highwalls Reclamation Pending
Briggle Avenue P2 Polluted Water: Human Consumption Reclamation Completed
Briggle Avenue P3 Bench Reclamation Pending
Briggle Avenue P3 Spoil Area Reclamation Pending
Brinker - Fohl P2 Polluted Water: Human Consumption Reclamation Completed
Brinker 6 P2 Dangerous Highwalls Reclamation Pending
Brinker Street Entries P1 Portals Reclamation Completed
Brinker Street Entries P1 Subsidence Reclamation Completed
Brinker Street Entries P1 Subsidence Reclamation Completed
Cabin Road P2 Polluted Water: Human Consumption Reclamation Completed
Calkins Subsidence P1 Subsidence Reclamation Completed
Canal Fulton East P1 Vertical Openings Reclamation Completed
Canal Fulton East P1 Vertical Openings Reclamation Pending
Canal Fulton West P1 Vertical Openings Reclamation Pending
Canal Fulton West P2 Subsidence Reclamation Completed
Canal Fulton West P2 Vertical Openings In Reclamation
Canton Recapping P1 Dangerous Highwalls Reclamation Pending
Canton Recapping P1 Dangerous Slides Reclamation Pending
Canton Recapping P1 Hazardous Water Bodies Reclamation Pending
Canton Recapping P1 Subsidence Reclamation Completed
Canton Recapping P1 Vertical Openings Reclamation Completed
Canton Recapping P1 Vertical Openings Reclamation Pending
Canton Recapping P2 Dangerous Highwalls Reclamation Pending
Canton Recapping P2 Hazardous Water Bodies Reclamation Pending
Canton Recapping P2 Subsidence Reclamation Pending
Canton Recapping P2 Vertical Openings Reclamation Pending
Canton Recapping P3 Spoil Area Reclamation Pending
Carver Shaft P1 Vertical Openings Reclamation Completed
Copen Subsidence P1 Subsidence Reclamation Completed
Crestlawn Drive S P1 Dangerous Highwalls Reclamation Pending
Crestlawn Drive S P2 Dangerous Highwalls Reclamation Pending
Cross Subsidence P1 Subsidence Reclamation Completed
Crystal Ney Subsidence P4 Other In Reclamation
Day Avenue Subsidence P1 Subsidence Reclamation Completed
Daymont West P1 Dangerous Highwalls Reclamation Pending
Daymont West P2 Dangerous Highwalls Reclamation Pending
Daymont West P2 Polluted Water: Human Consumption Reclamation Pending
Daymont West P2 Vertical Openings Reclamation Pending
East Canton P2 Dangerous Slides Reclamation Completed
East Canton East P2 Portals Reclamation Completed
East Canton East P2 Vertical Openings Reclamation Completed
East Canton Pits P2 Dangerous Highwalls Reclamation Completed
East Canton Pits P3 Pits Reclamation Completed
East Canton Pits P3 Spoil Area Reclamation Completed
East Canton SE P1 Hazardous Water Bodies Reclamation Pending
East Greenville P1 Vertical Openings Reclamation Pending
East Greenville P2 Vertical Openings Reclamation Pending
East Sparta P1 Hazardous Water Bodies Reclamation Pending
Edgefield Subsidence P1 Subsidence Reclamation Completed
Edgefield Subsidence P1 Subsidence Reclamation Completed
Edgefield Subsidence P1 Vertical Openings Reclamation Completed
Edgefield Subsidence P2 Portals Reclamation Completed
Ellesmere Avenue P1 Subsidence Reclamation Completed
Ellesmere Avenue P1 Subsidence Reclamation Completed
Eskew House Subsidence P1 Subsidence Reclamation Completed
Fisher P1 Subsidence Reclamation Completed
Fisher Ii P1 Subsidence Reclamation Completed
Fohl Road P1 Subsidence Reclamation Completed
Fulton Slope Subsidence P1 Subsidence Reclamation Completed
Gardner Subsidence P1 Subsidence Reclamation Completed
Girl Scout Office Subsidence P1 Subsidence Reclamation Completed
Goodland P2 Polluted Water: Human Consumption Reclamation Completed
Goodland Acres P1 Dangerous Highwalls Reclamation Pending
Goodland Acres P1 Hazardous Water Bodies Reclamation Pending
Goodland Acres P1 Subsidence Reclamation Pending
Goodland Acres P2 Dangerous Highwalls In Reclamation
Goodland Acres P2 Industrial/Residential Waste Reclamation Completed
Goodland Acres P3 Spoil Area Reclamation Pending
Gruber Subsidence P1 Subsidence Reclamation Completed
Harmon P1 Dangerous Piles & Embankments Reclamation Completed
Harmon P1 Portals Reclamation Completed
Harper Subsidence P1 Subsidence Reclamation Completed
Hedgerose Ave P1 Dangerous Highwalls Reclamation Pending
Hedgerose Ave P1 Subsidence Reclamation Completed
Herbert Subsidence P1 Subsidence Reclamation Completed
Hollinger Subsidence P1 Subsidence Reclamation Completed
Homestead Road Subsidence P1 Subsidence Reclamation Completed
Hudson Drive Highwal P1 Dangerous Highwalls Reclamation Pending
Hudson Drive Highwal P1 Hazardous Water Bodies In Reclamation
Hudson Drive Highwal P2 Dangerous Highwalls In Reclamation
Hudson Drive Highwal P2 Hazardous Water Bodies Reclamation Pending
Huffman P1 Subsidence Reclamation Completed
J Davis Subsidence P1 Subsidence Reclamation Completed
Jeanette Subsidence P1 Subsidence Reclamation Completed
Kerens Subsidence P1 Subsidence Reclamation Completed
Kerns Subsidence P1 Subsidence Reclamation Completed
Lake Sherman Highwall P2 Dangerous Highwalls Reclamation Completed
Lawndell Road P1 Hazardous Water Bodies Reclamation Pending
Lawndell Road P1 Vertical Openings Reclamation Pending
Lawndell Road P2 Clogged Stream Lands Reclamation Completed
Lawndell Road P2 Vertical Openings In Reclamation
Lawrence Realty Subsidence P1 Subsidence Reclamation Completed
Lemmo Subsidence P1 Subsidence Reclamation Completed
Little Sandy Creek P2 Portals Reclamation Pending
Little Sandy Creek P3 Water Problems Reclamation Pending
Lupe Ave Subsidence P1 Subsidence Reclamation Completed
Lupe Hole Subsidence P1 Subsidence Reclamation Completed
Malvern West P1 Hazardous Water Bodies Reclamation Pending
Malvern West P2 Clogged Stream Lands Reclamation Completed
Malvern West P2 Hazardous Equip & Facilities Reclamation Pending
Mapleton Street Entry P2 Portals Reclamation Pending
Martin Drive Water P2 Polluted Water: Human Consumption Reclamation Completed
Mccracken - Indorf P2 Clogged Stream Lands Reclamation Completed
Mccracken - Indorf P2 Dangerous Piles & Embankments Reclamation Completed
Middle Bear Run P1 Hazardous Water Bodies Reclamation Pending
Middle Bear Run P2 Dangerous Highwalls Reclamation Pending
Mock Subsidence P1 Subsidence Reclamation Completed
Moffitt Heights P1 Vertical Openings Reclamation Pending
Moffitt Heights P1 Vertical Openings Reclamation Completed
Moffitt Heights P2 Vertical Openings Reclamation Pending
Mottice Subsidence P1 Subsidence Reclamation Completed
Mozden Subsidence P1 Subsidence Reclamation Completed
N Barris St P1 Vertical Openings Reclamation Pending
N Barris St P2 Vertical Openings Reclamation Pending
Neimans Road P1 Dangerous Highwalls Reclamation Pending
Nesbitt P1 Subsidence Reclamation Completed
Newman Shaft P1 Vertical Openings Reclamation Pending
Newman Shaft P2 Vertical Openings In Reclamation
Nimishillen S P1 Dangerous Highwalls Reclamation Pending
No. Industry Se P2 Polluted Water: Human Consumption Reclamation Completed
North Canton Mine Subsidence P1 Subsidence Reclamation Completed
North Canton Subsidence P1 Subsidence Reclamation Completed
North Canton Subsidence P1 Subsidence Reclamation Pending
North Canton Subsidence P1 Vertical Openings Reclamation Completed
North Canton Subsidence P1 Vertical Openings Reclamation Completed
North Canton Subsidence P2 Subsidence Reclamation Completed
North Canton Subsidence P3 Slump Reclamation Completed
North Lawrence P1 Subsidence Reclamation Pending
North Lawrence P1 Vertical Openings Reclamation Pending
North Lawrence P2 Vertical Openings In Reclamation
North Lawrence Firemen P1 Subsidence Reclamation Completed
North Lawrence Subsidence P1 Subsidence Reclamation Completed
North Sulphur Run P1 Vertical Openings Reclamation Pending
North Sulphur Run P2 Polluted Water: Human Consumption Reclamation Completed

…and 54 more problems not listed here.

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 Abandoned74 on register
  1. A J Diana Sons Incorporated
    Facility metal/non-metal · A J Diana Sons Inc · MSHA ID 3301378
    Abandoned
  2. Alliance Brick Corp Pit No 2
    Surface metal/non-metal · Alliance Brick Corp · MSHA ID 3301826
    Abandoned
  3. American Landfill, Inc.
    Surface coal · American Landfill, Inc. · MSHA ID 3304293
    Abandoned
  4. AMERICAN SAND & GRAVEL PLANT #2
    Surface metal/non-metal · American Sand & Gravel · MSHA ID 3303833
    Abandoned
  5. Auger No 2
    Surface coal · Brown Auger Mining Company · MSHA ID 3303515
    Abandoned
  6. Bair Strip
    Surface coal · St Joseph Coal Inc · MSHA ID 3303518
    Abandoned
  7. Beaver Excavating Crushing 001
    Surface metal/non-metal · The Beaver Excavating Co · MSHA ID 3304780
    Abandoned
  8. Beaver Excavating Crushing 002
    Surface metal/non-metal · The Beaver Excavating Co · MSHA ID 3304779
    Abandoned
  9. Black Hawk Mine
    Surface metal/non-metal · Kohl Industries · MSHA ID 3303839
    Abandoned
  10. Blue Jay #1
    Surface metal/non-metal · Blue Jay Ent. of Tuscarawas County, Inc. · MSHA ID 3300552
    Abandoned
  11. Brad Mine
    Surface coal · N A L D Construction Inc · MSHA ID 3303912
    Abandoned
  12. C A M Co #4
    Surface coal · C A M Company · MSHA ID 3304235
    Abandoned
  13. C A M Co Auger #4
    Surface coal · C A M Company · MSHA ID 3304001
    Abandoned
  14. Canton Limestone Sales Incorporated
    Facility metal/non-metal · Canton Limestone Sales Inc · MSHA ID 3304205
    Abandoned
  15. CCU Stark Strip
    Surface coal · CCU Coal and Construction LLC · MSHA ID 3304181
    Abandoned
  16. Central Aggregates Div.
    Surface metal/non-metal · Central - Allied Enterprises, Inc. · MSHA ID 3304324
    Abandoned
  17. Columbus Road
    Surface metal/non-metal · Joseph A Jeffries Company Inc · MSHA ID 3304253
    Abandoned
  18. Countywide Clay
    Surface metal/non-metal · Valley Mining Inc. · MSHA ID 3304596
    Abandoned
  19. Countywide Landfill
    Surface coal · Landscaping & Reclamation Specialist Inc · MSHA ID 3304262
    Abandoned
  20. Countywide Recycling & Disposal Facility
    Surface coal · Countywide Recycling and Disposal Facility · MSHA ID 3304517
    Abandoned
  21. D & M Clay & Shale Pit
    Surface metal/non-metal · D & M Coal Inc · MSHA ID 3301835
    Abandoned
  22. Diano Sand And Gravel Pit
    Surface metal/non-metal · Diamond Washed Gravel Company · MSHA ID 3302022
    Abandoned
  23. E N Z Mining
    Surface coal · Valley Mining, Inc. · MSHA ID 3304244
    Abandoned
  24. East Ohio Limestone Company
    Surface metal/non-metal · East Ohio Limestone Company · MSHA ID 3300061
    Abandoned
  25. Ervin Pit
    Surface metal/non-metal · Enz Inc · MSHA ID 3303919
    Abandoned
  26. Ervin Strip
    Surface coal · Enz Inc · MSHA ID 3303834
    Abandoned
  27. ESSROC CEMENT MIDDLEBRANCH
    Facility metal/non-metal · Essroc Materials Inc · MSHA ID 3300057
    Abandoned
  28. Foltz Mine
    Surface coal · L & M Tool Company Inc · MSHA ID 3304120
    Abandoned
  29. Grimes Strip
    Surface coal · Minerva Mining Inc · MSHA ID 3303618
    Abandoned
  30. Hartline Strip
    Surface coal · Wilmot Mining Company · MSHA ID 3300994
    Abandoned
  31. Hartville Pit And Plant
    Surface metal/non-metal · Hartville Sand & Gravel · MSHA ID 3303521
    Abandoned
  32. Heiser Mine
    Surface metal/non-metal · Heiser Sand & Gravel Corporation · MSHA ID 3301624
    Abandoned
  33. Hillcrest Mine (Strip)
    Surface coal · Hillcrest Coal · MSHA ID 3303314
    Abandoned
  34. Horizon Strip - Canton
    Surface coal · Horizon Coal Corp · MSHA ID 3303918
    Abandoned
  35. Jen Augering
    Surface coal · Jen Drilling Inc · MSHA ID 3304003
    Abandoned
  36. K & R No 1 (Strip)
    Facility coal · K & R Mining Inc · MSHA ID 3303673
    Abandoned
  37. Kimble/Stark
    Surface coal · Kimble Clay & Limestone · MSHA ID 3304515
    Abandoned
  38. Kimble/Stark
    Surface metal/non-metal · Kimble Clay & Limestone · MSHA ID 3304587
    Abandoned
  39. M309 Crusher
    Facility coal · Penn-Ohio Coal · MSHA ID 3304670
    Abandoned
  40. Magnolia Plant
    Facility metal/non-metal · The National Lime & Stone Company · MSHA ID 3304623
    Abandoned
  41. Mapleton Strip
    Surface coal · Magnolia Mining Company · MSHA ID 3300993
    Abandoned
  42. Marie Pit
    Surface metal/non-metal · C M Mining Inc · MSHA ID 3304043
    Abandoned
  43. Massillon Materials Incorporated
    Surface metal/non-metal · Massillon Materials Inc · MSHA ID 3304054
    Abandoned
  44. Massillon Washed Gravel Div.
    Surface metal/non-metal · Central - Allied Enterprises, Inc. · MSHA ID 3301554
    Abandoned
  45. MUDBRO0K PLANT
    Surface metal/non-metal · Oster Sand & Gravel Inc · MSHA ID 3304192
    Abandoned
  46. NATIONAL AGGREGATES, INC.
    Surface metal/non-metal · National Aggregates,Inc. · MSHA ID 3304352
    Abandoned
  47. Navarre Tipple
    Facility coal · Wilmot Mining Company · MSHA ID 3300887
    Abandoned
  48. No 1 Pit
    Surface metal/non-metal · Cricket Minerals Company · MSHA ID 3303946
    Abandoned
  49. North Mine
    Surface coal · Wilmot Mining Company · MSHA ID 3302929
    Abandoned
  50. Ohio Auger #1
    Surface coal · Mc Cullough Mining Inc · MSHA ID 3304000
    Abandoned
  51. Ohio Auger #1
    Surface coal · Mc Cullough Mining Inc · MSHA ID 3304085
    Abandoned
  52. Paris Mine
    Surface metal/non-metal · Central East Coal Company Inc · MSHA ID 3300454
    Abandoned
  53. Paris Strip
    Surface coal · Central East Coal Company · MSHA ID 3300878
    Abandoned
  54. Pierce Strip Mine
    Surface coal · Ferris Coal Company Inc · MSHA ID 3303261
    Abandoned
  55. Portage Street (Plant #2)
    Surface metal/non-metal · Central Allied Enterprises Inc · MSHA ID 3302023
    Abandoned
  56. Rindchen Strip
    Surface coal · Mansfield Hawk Mining Inc · MSHA ID 3303509
    Abandoned
  57. Rioi Construction Leasing, LLC
    Surface metal/non-metal · Rioi Construction Leasing, LLC · MSHA ID 3304633
    Abandoned
  58. Robertsville Strip
    Surface coal · Burning Hollow Coal Company Inc · MSHA ID 3303510
    Abandoned
  59. Romany Plant & Pits
    Surface metal/non-metal · Spartek Inc · MSHA ID 3300565
    Abandoned
  60. S & S Auger #1 Stark County
    Surface coal · S & S Auger Mining · MSHA ID 3304095
    Abandoned
  61. Sickafoose Mine
    Surface coal · ENZ, INC. · MSHA ID 3303988
    Abandoned
  62. Slankard IM-2321
    Surface metal/non-metal · Kimble Company · MSHA ID 3304740
    Abandoned
  63. Springwood Mine
    Surface coal · Logan Mining Company Inc · MSHA ID 3303898
    Abandoned
  64. Stark Ceramics Inc Plants & Pits
    Surface metal/non-metal · Stark Ceramics Inc · MSHA ID 3300522
    Abandoned
  65. Stark County Pits
    Surface coal · Dalton & Son Construction Company · MSHA ID 3304111
    Abandoned
  66. Stark Pits
    Surface coal · Rosebud Mining Company · MSHA ID 3304045
    Abandoned
  67. Stone Products Pit & Mill #2
    Surface metal/non-metal · Stone Products Inc · MSHA ID 3303944
    Abandoned
  68. Stone Products Pit And Mill
    Surface metal/non-metal · Stone Products Inc · MSHA ID 3303520
    Abandoned
  69. Suzie
    Surface metal/non-metal · Burrow'S Mining Inc · MSHA ID 3302120
    Abandoned
  70. Suzie Mine
    Facility coal · Burrow'S Mining Inc · MSHA ID 3303815
    Abandoned
  71. WAYNESBURG QUARRY
    Surface metal/non-metal · SIDWELL MATERIALS INC · MSHA ID 3304710
    Abandoned
  72. Waynesburg Strip
    Surface coal · Goshen Coal Company · MSHA ID 3302610
    Abandoned
  73. Whitacre Plant No 2
    Facility metal/non-metal · Whitacre Greer Fireproofing Company · MSHA ID 3301980
    Abandoned
  74. Wilmot Strip
    Surface coal · Holmes Limestone Company · MSHA ID 3303883
    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
Strip Mine 296
P1 Subsidence 77
Open Pit Mine or Quarry 28
P1 Vertical Openings 25
P2 Vertical Openings 19
Gravel Pit 16
Mine Dump 14
P2 Polluted Water: Human Consumption 12
P2 Dangerous Highwalls 12
P1 Dangerous Highwalls 10
Gravel/Borrow Pit - Undifferentiated 9
Gravel Pit 9
Sand and Gravel Pit 9
P1 Hazardous Water Bodies 8
P3 Spoil Area 7
P2 Subsidence 6
Clay Pit 6
Disturbed Surface - Pit 5
P2 Portals 5
P2 Clogged Stream Lands 4
Sand and Gravel Pit 4
Open Pit Mine 3
Adit 3
Mine Shaft 3
Disturbed Surface 2
Sand Pit 2
P2 Hazardous Equip & Facilities 2
P4 Other 2
P2 Hazardous Water Bodies 2
P1 Portals 2
Quarry 2
Sand Pit 2
P1 Dangerous Slides 1
P2 Industrial/Residential Waste 1
P3 Slump 1
P1 Dangerous Piles & Embankments 1
P2 Dangerous Slides 1
P2 Dangerous Piles & Embankments 1
P3 Bench 1
Slag Pile 1
P3 Water Problems 1
Gravel/Borrow Pit - Undifferentiated 1
Shale Pit 1
P3 Pits 1
Borrow Pit 1
P3 High Wall 1
Tailings - Pond 1
P3 Other 1
Other counties in OhioAll 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.