Abandoned mines in Jackson County, Ohio
Jackson County, Ohio has 379 mine and prospect features on USGS topographic maps published 1912–1995, including 9 mine openings (shafts, adits and air shafts). OSMRE's abandoned mine land inventory lists 192 problems in the county, 55 of them not yet reclaimed. MSHA's register carries 68 mines in the county with status Abandoned or Abandoned and Sealed.
Every mine and prospect feature the USGS digitized from historical topographic maps covering Jackson 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)
- 379
- Mine openings
- 9
- OSMRE problems unreclaimed
- 55
- MSHA mines marked abandoned
- 68
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48 8.4%Mine openingsshafts, adits, air shafts, portals and vertical openings: the ways into underground workings
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325 56.9%Mines and surface workingslabelled mines, open pits, strip mines, placer and hydraulic workings
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45 7.9%Quarries, gravel and borrow pitsconstruction-material and industrial-mineral extraction
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26 4.6%Dumps, tailings, spoil and gobwhat mining left above ground
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7 1.2%Mills, tipples and facilitiesprocessing plants and hazardous structures
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120 21.0%Other reclamation problemshighwalls, subsidence, polluted or clogged water, fires, slides and gases in OSMRE's inventory
| Problem area | Problem | Status |
|---|---|---|
| B&d Ready Mix Subsidence | P1 Subsidence | Reclamation Completed |
| Baisden Subsidence | P1 Subsidence | Reclamation Completed |
| Baisden Subsidence 2 | P1 Subsidence | Reclamation Completed |
| Betty Brooks Subsidence | P1 Subsidence | Reclamation Completed |
| Bridge Street Subsidence | P1 Subsidence | Reclamation Completed |
| Brooks Yates Subsidence | P1 Subsidence | Reclamation Completed |
| Bryn Hvfryd Church | P2 Polluted Water: Human Consumption | Reclamation Completed |
| Buckeye Furnace-jackson | P1 Dangerous Highwalls | Reclamation Pending |
| Buckeye Furnace-jackson | P1 Dangerous Impoundments | Reclamation Pending |
| Buckeye Furnace-jackson | P1 Dangerous Piles & Embankments | Reclamation Pending |
| Buckeye Furnace-jackson | P1 Hazardous Water Bodies | Reclamation Pending |
| Buckeye Furnace-jackson | P1 Portals | Reclamation Pending |
| Buckeye Furnace-jackson | P1 Vertical Openings | Reclamation Pending |
| Buckeye Furnace-jackson | P2 Clogged Streams | Reclamation Completed |
| Buckeye Furnace-jackson | P2 Vertical Openings | Reclamation Pending |
| Buckeye Furnace-jackson | P3 Gobs | Reclamation Completed |
| Buckeye Furnace-jackson | P3 Spoil Area | Reclamation Pending |
| Bucklick Gravel Pit | P1 Portals | Reclamation Completed |
| Bucklick Gravel Pit | P1 Vertical Openings | Reclamation Completed |
| Carlisle | P1 Subsidence | Reclamation Completed |
| Carlisle | P1 Vertical Openings | Reclamation Completed |
| Carlisle | P3 Other | Reclamation Pending |
| Coal Run | P1 Portals | Reclamation Pending |
| Coal Run | P2 Subsidence | Reclamation Completed |
| Diamond Brick Subsidence | P1 Subsidence | Reclamation Completed |
| Dixon Run Clog | P1 Dangerous Slides | In Reclamation |
| Dixon Run Clog | P2 Clogged Stream Lands | In Reclamation |
| Dixon Run Clog | P2 Clogged Streams | In Reclamation |
| Dixon Run Clog | P2 Hazardous Equip & Facilities | Reclamation Completed |
| Dixon Run Clog | P3 High Wall | Reclamation Pending |
| Dixon Run Clog | P3 Spoil Area | Reclamation Pending |
| Donta Subsidence | P2 Subsidence | Reclamation Pending |
| Ed Davis Road Subsidence | P1 Subsidence | Reclamation Completed |
| Flint Run | P3 Spoil Area | Reclamation Completed |
| Flint Run | P3 Water Problems | Reclamation Completed |
| Flint Run | P3 Water Problems | Reclamation Completed |
| Frisbe Subsidence | P1 Subsidence | Reclamation Completed |
| George Roberts Subsidence | P1 Subsidence | Reclamation Completed |
| Glen Roy | P1 Hazardous Equip & Facilities | Reclamation Pending |
| Glen Roy | P1 Portals | Reclamation Pending |
| Glen Roy | P1 Subsidence | Reclamation Completed |
| Glen Roy | P1 Vertical Openings | In Reclamation |
| Glen Roy | P2 Vertical Openings | Reclamation Pending |
| Goldsboro Shaft | P2 Vertical Openings | Reclamation Completed |
| Harrison Road Subsidence | P1 Subsidence | Reclamation Completed |
| Henry Subsidence | P1 Subsidence | Reclamation Completed |
| Hollingshead Entry | P1 Portals | Reclamation Completed |
| Hothouse Ridge N | P3 Spoil Area | Reclamation Completed |
| Hothouse Ridge N | P3 Spoil Area | Reclamation Completed |
| Hothouse Ridge N | P3 Water Problems | Reclamation Completed |
| Hothouse Ridge N | P3 Water Problems | Reclamation Completed |
| Hothouse Ridge- South | P1 Dangerous Impoundments | Reclamation Completed |
| Hothouse Ridge- South | P2 Clogged Stream Lands | Reclamation Completed |
| Hothouse Ridge- South | P3 Pits | Reclamation Pending |
| Hothouse Ridge- South | P3 Spoil Area | Reclamation Completed |
| Hothouse Ridge- South | P3 Spoil Area | Reclamation Completed |
| Hothouse Ridge- South | P3 Spoil Area | Reclamation Pending |
| Hothouse Ridge- South | P3 Spoil Area | Reclamation Completed |
| Hothouse Ridge- South | P3 Water Problems | Reclamation Completed |
| Ironton Junction | P2 Vertical Openings | In Reclamation |
| Jackson Co Fairgrounds | P2 Portals | Reclamation Completed |
| Jackson Hill Subsidence | P1 Subsidence | Reclamation Completed |
| Jackson Lake West | P2 Clogged Stream Lands | Reclamation Completed |
| Jackson Lake West | P2 Clogged Streams | Reclamation Completed |
| Jackson Lake West | P2 Hazardous Equip & Facilities | Reclamation Completed |
| Jackson Southwest | P1 Portals | Reclamation Completed |
| Jackson Southwest | P1 Vertical Openings | Reclamation Completed |
| Jackson Subsidences | P1 Subsidence | Reclamation Completed |
| Jackson Subsidences | P1 Vertical Openings | Reclamation Pending |
| Jackson Subsidences | P2 Dangerous Highwalls | Reclamation Pending |
| Keystone | P1 Hazardous Equip & Facilities | Reclamation Completed |
| Keystone | P1 Industrial/Residential Waste | Reclamation Completed |
| Keystone | P1 Portals | Reclamation Completed |
| Keystone | P2 Hazardous Equip & Facilities | Reclamation Completed |
| Keystone | P2 Portals | Reclamation Completed |
| Keystone | P3 Gobs | In Reclamation |
| Keystone | P3 Spoil Area | Reclamation Pending |
| Kisor Road Subsidence | P1 Subsidence | Reclamation Completed |
| Kitchen Southeast | P2 Clogged Stream Lands | Reclamation Completed |
| Kitchen Southeast | P2 Clogged Streams | Reclamation Completed |
| Kyle Subsidence | P1 Subsidence | Reclamation Completed |
| Lake Katherine | P1 Subsidence | Reclamation Completed |
| Lake Katherine Road Subsidence | P1 Subsidence | Reclamation Completed |
| Lenegar Subsidence | P1 Subsidence | Reclamation Completed |
| Lew Jones Road West | P2 Clogged Streams | Reclamation Pending |
| Marjorie Brooks Subsidence | P1 Subsidence | Reclamation Completed |
| Mcmanis Subsidence | P1 Subsidence | Reclamation Completed |
| Middleton | P2 Clogged Stream Lands | In Reclamation |
| Middleton | P3 Pits | Reclamation Completed |
| Middleton | P3 Spoil Area | In Reclamation |
| Middleton Run | P3 Spoil Area | Reclamation Completed |
| Middleton Run | P3 Spoil Area | Reclamation Completed |
| Middleton Run-hiram Rd West | P1 Dangerous Highwalls | Reclamation Pending |
| Middleton Run-hiram Rd West | P1 Hazardous Water Bodies | Reclamation Pending |
| Middleton Run-hiram Rd West | P2 Dangerous Highwalls | Reclamation Pending |
| Middleton Run-hiram Rd West | P3 Water Problems | Reclamation Completed |
| Middleton Run-hiram Rd West | P3 Water Problems | Reclamation Completed |
| Middleton West | P2 Dangerous Piles & Embankments | Reclamation Completed |
| Middleton West | P3 High Wall | Reclamation Completed |
| Middleton West | P3 Pits | Reclamation Completed |
| Middleton West | P3 Pits | Reclamation Completed |
| Middleton West | P3 Pits | Reclamation Completed |
| Middleton West | P3 Spoil Area | Reclamation Completed |
| Middleton West | P3 Spoil Area | Reclamation Completed |
| Middleton West | P3 Spoil Area | Reclamation Completed |
| Middleton West | P3 Spoil Area | Reclamation Completed |
| Montgomery Subsidence | P1 Subsidence | Reclamation Completed |
| Moore-adkins Subsidence | P1 Subsidence | Reclamation Completed |
| Mulga | P1 Clogged Streams | Reclamation Completed |
| Mulga | P2 Clogged Stream Lands | Reclamation Completed |
| Mulga | P2 Clogged Streams | Reclamation Completed |
| Mulga | P2 Dangerous Slides | Reclamation Completed |
| Mulga | P3 Spoil Area | Reclamation Pending |
| Mulga Nw | P2 Clogged Stream Lands | Reclamation Pending |
| Mulga Run Cla | P3 Water Problems | Reclamation Completed |
| Mulga Run Cla | P3 Water Problems | Reclamation Completed |
| Mulga Run North Ama | P1 Portals | Reclamation Pending |
| Mulga Run North Ama | P3 Water Problems | Reclamation Completed |
| Mulga Run Nw - Alt Fund | P3 Water Problems | Reclamation Completed |
| Northwest Wellston | P1 Portals | Reclamation Completed |
| Oak Hill 233 South | P2 Polluted Water: Human Consumption | Reclamation Completed |
| Oak Hill Pit | P1 Subsidence | In Reclamation |
| Oak Hill Pit | P2 Clogged Stream Lands | Reclamation Completed |
| Oak Hill South 233 | P2 Polluted Water: Human Consumption | Reclamation Completed |
| Oak Street Subsidence | P1 Subsidence | Reclamation Completed |
| Oakhill | P2 Portals | Reclamation Pending |
| Oakview School | P1 Subsidence | Reclamation Completed |
| Oh - Jackson - Fea | P1 Subsidence | Reclamation Completed |
| Oh - Jackson - Fea | P1 Surface Burning | Reclamation Completed |
| Oh - Jackson - Fea | P1 Vertical Openings | Reclamation Completed |
| Ohio Ave Subsidence | P1 Subsidence | Reclamation Completed |
| Oscar Ward Subsidence | P1 Subsidence | Reclamation Completed |
| Petrea Shafts | P2 Vertical Openings | Reclamation Completed |
| Pyro | P1 Dangerous Impoundments | Reclamation Completed |
| Pyro | P3 Spoil Area | Reclamation Completed |
| Ratchford Shafts | P2 Vertical Openings | Reclamation Pending |
| Rawlins Subsidence | P1 Subsidence | Reclamation Completed |
| Rich Run | P1 Dangerous Slides | Reclamation Completed |
| Rich Run | P1 Hazardous Equip & Facilities | Reclamation Pending |
| Rich Run | P1 Hazardous Water Bodies | Reclamation Completed |
| Rich Run | P1 Vertical Openings | Reclamation Pending |
| Rich Run | P2 Portals | Reclamation Completed |
| Rich Run | P2 Vertical Openings | Reclamation Completed |
| Rich Run | P3 Gobs | Reclamation Pending |
| Rich Run | P3 Pits | Reclamation Pending |
| Rich Run | P3 Spoil Area | Reclamation Pending |
| Rich Run Sr 124 Seeps | P3 Water Problems | Reclamation Completed |
| Rich Run Sr 124 Seeps | P3 Water Problems | Reclamation Completed |
| Richland Forest | P2 Subsidence | Reclamation Completed |
| Richland Forest | P2 Vertical Openings | Reclamation Completed |
…and 42 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.
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A P Green Refractories Co PlantAbandoned 1982-05-21Facility metal/non-metal · A P Green Refractories Inc · MSHA ID 3300441
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Adams PitAbandoned 1987-05-27Surface coal · Paul Adams Coal Company · MSHA ID 3303665
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Addington - Jackson Co StripAbandoned 1994-08-08Surface coal · Addington Inc · MSHA ID 3301304
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Adena No 4 MineAbandoned 1980-09-26Underground coal · Adena Minerals Company · MSHA ID 3303614
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AugerAbandoned 1971-04-20Surface coal · Goeglein Coal Company · MSHA ID 3300779
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B & D Coal #2Abandoned 1992-03-03Surface coal · B & D Coal Inc · MSHA ID 3303903
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Bear Creek #1Abandoned 2012-01-23Surface coal · Bear Creek Coal LLC · MSHA ID 3304613
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BelvilleAbandoned 1983-06-03Surface coal · Bellville Mining Company Inc · MSHA ID 3300970
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Benchmark Pit And MillAbandoned 1983-07-22Surface metal/non-metal · Benchmark Minerals Inc · MSHA ID 3303871
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Big W MineAbandoned 1984-10-18Surface coal · Curtis Jenkins Coal Company · MSHA ID 3303623
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Blue Star StripAbandoned 1979-10-01Surface coal · Blue Star Mining · MSHA ID 3303290
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Bowling StripAbandoned 1992-08-03Surface coal · Elk Coal Inc · MSHA ID 3303955
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Broken AROAbandoned 2023-08-21Facility metal/non-metal · Elko Aggregate, LLC · MSHA ID 3304735
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Broken Arrow StripAbandoned 1971-11-18Surface coal · Goeglein Coal Company · MSHA ID 3301833
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Brooks No 1 StripAbandoned 1979-10-01Surface coal · O-Tra Industries · MSHA ID 3303502
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CanterAbandoned 2025-06-12Surface metal/non-metal · HWI · MSHA ID 3304729
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Coleman StripAbandoned 1979-10-01Surface coal · Coleman Coal Sales · MSHA ID 3303301
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Comer Quarry & MillAbandoned 1983-07-22Surface metal/non-metal · Minerals Research & Recovery Of Ohio Inc · MSHA ID 3300351
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D & J StripAbandoned 1987-05-27Surface coal · D & J Energy Inc · MSHA ID 3304080
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Daft StripAbandoned 1977-12-29Surface coal · Daft Coal Company Inc · MSHA ID 3303536
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Dark Hollow IAbandoned 1999-08-18Surface coal · R A Eberts Company Inc · MSHA ID 3303747
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Davis Plant #2Abandoned 1982-05-21Facility metal/non-metal · Davis Firebrick Company · MSHA ID 3301215
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Durex MillAbandoned 1982-05-21Facility metal/non-metal · A P Green Refractories Inc · MSHA ID 3302687
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EmpireAbandoned 1979-12-14Surface coal · Empire Minerals Corp · MSHA ID 3303685
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GilmoreAbandoned 1986-05-14Surface coal · La May Coal Company Inc · MSHA ID 3303332
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Gilmore PitAbandoned 1990-02-27Surface coal · La May Industries Inc · MSHA ID 3304047
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Global #1Abandoned 1984-06-07Surface coal · Global Mining Inc · MSHA ID 3303888
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Greasy #1Abandoned and Sealed 1989-10-31Underground coal · Milton Mining Company Inc · MSHA ID 3303759
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Jackson PitAbandoned 1984-06-07Surface coal · Kruger Coal Company · MSHA ID 3303757
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Jackson Pit #2Abandoned 1972-11-06Surface coal · Goeglein Coal Company · MSHA ID 3301363
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Jackson PlantAbandoned 2016-05-09Surface metal/non-metal · Tow Path Ready Mix · MSHA ID 3304720
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Jackson StripAbandoned 1980-04-16Surface coal · E & Z Coal Company Inc · MSHA ID 3303641
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Jackson Strip No 1 MineAbandoned 1979-10-01Surface coal · Peaker Run Coal Company Inc · MSHA ID 3303374
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Johnson MineAbandoned 1980-09-26Underground coal · Johnson Mining Company · MSHA ID 3301076
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Johnson MineAbandoned and Sealed 1985-02-08Underground coal · C & L Mining Company · MSHA ID 3301253
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Jones Pit StripAbandoned 1980-02-29Surface coal · J R Coal Company Inc · MSHA ID 3303372
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Jordan PitAbandoned 1980-02-29Surface coal · Burke & Mc Guire Coal Corp · MSHA ID 3303664
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Juniper Jackson No 1 StripAbandoned 1979-10-01Surface coal · Progressive Energy Inc · MSHA ID 3303624
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Liberty MineAbandoned 1990-07-09Surface coal · Royal Oak Industries Inc · MSHA ID 3303952
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Low Sulfur StripAbandoned 1983-04-18Surface coal · Low Sulfur Coal Of Ohio Inc · MSHA ID 3303539
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Merco Strip #3Abandoned 1981-10-09Surface coal · Merco Mining Inc · MSHA ID 3302999
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Mine No 1Abandoned 1980-08-28Surface coal · H C Hale & Associates · MSHA ID 3303767
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NapoleonAbandoned 1980-09-26Underground coal · Waterloo Coal Company · MSHA ID 3301252
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Newt Mine 1Abandoned and Sealed 1986-12-31Underground coal · Davis Coal Company Inc · MSHA ID 3304070
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No 4 StripAbandoned 1971-04-08Surface coal · Goeglein Coal Company · MSHA ID 3300780
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Oak Grove No 1Abandoned 1998-07-14Surface coal · Oak Grove Coal Company · MSHA ID 3303297
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Oak HillAbandoned 2021-04-30Facility metal/non-metal · Melvin Stone Company LLC · MSHA ID 3300178
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Oak Hill StripAbandoned 1984-08-09Surface coal · Harley E Calvin & Company · MSHA ID 3303302
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Oak Hill TippleAbandoned 2024-05-23Surface coal · Waterloo Coal Co. Inc. · MSHA ID 3304774
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Ohio Fire Brick PlantAbandoned 1982-05-21Facility metal/non-metal · Ohio Fire Brick Co · MSHA ID 3300513
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Perkins MineAbandoned 1980-09-26Underground coal · R & R Coal Company · MSHA ID 3302309
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PoetkerAbandoned 2015-09-03Surface metal/non-metal · A P Green Refractories · MSHA ID 3304663
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Pyro StripAbandoned 1979-10-01Surface coal · Southeastern Fuel Inc · MSHA ID 3303649
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RockCamp Underground Mine # 1Abandoned 2024-03-12Facility coal · Carbon River Coal Corp · MSHA ID 3304702
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Rogers PitAbandoned 1979-10-01Surface coal · Rogers Coal · MSHA ID 3303648
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Rose Ug #1Abandoned 1971-03-06Underground coal · Rose Coal Company · MSHA ID 3300786
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S & S Auger Mining #3Abandoned 1996-10-30Surface coal · S & S Auger Mining · MSHA ID 3304291
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Sands HillAbandoned 2024-02-29Facility metal/non-metal · Melvin Stone Company · MSHA ID 3304041
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Skinner StripAbandoned 1979-10-01Surface coal · Joe Skinner Inc · MSHA ID 3303379
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Stewart & Zinn StripAbandoned 1975-09-04Surface coal · Stewart & Zinn Inc · MSHA ID 3302570
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Stewart TippleAbandoned 2002-06-12Facility coal · Bramhi Inc · MSHA ID 3304365
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Titan Fuel StripAbandoned 1979-10-01Surface coal · Titan Fuel Company Inc · MSHA ID 3303605
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Toelkes Strip No 1Abandoned 1979-10-01Surface coal · International Midwest Mng Co · MSHA ID 3303327
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Tunnel Coal Co Inc MineAbandoned 1979-10-01Underground coal · Tunnel Coal Company Inc · MSHA ID 3303629
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Walton TippleAbandoned 1986-09-23Facility coal · Walton Coal Company · MSHA ID 3300788
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Waterloo Stone PlantAbandoned 1985-07-18Facility metal/non-metal · Hot Rocks Stone Company Inc · MSHA ID 3303960
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West Job 82 StripAbandoned 1983-06-28Facility coal · Cardinal Coal Company · MSHA ID 3303412
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Williams Creek StripAbandoned 1979-10-01Surface coal · Ohio Valley Energy Corp Inc · MSHA ID 3303694
Status and date are as reported to MSHA by the operator. Each mine's own page carries its accident, citation and inspection record.
| Feature type | Features |
|---|---|
| Strip Mine | 275 |
| P1 Subsidence | 45 |
| Open Pit Mine or Quarry | 45 |
| P3 Spoil Area | 21 |
| Clay Pit | 15 |
| P1 Vertical Openings | 13 |
| P2 Vertical Openings | 13 |
| P3 Water Problems | 13 |
| P2 Clogged Stream Lands | 12 |
| P1 Portals | 9 |
| Adit | 8 |
| P3 Pits | 7 |
| P2 Clogged Streams | 7 |
| Gravel Pit | 6 |
| Clay Pit | 6 |
| Gravel Pit | 5 |
| P1 Hazardous Water Bodies | 5 |
| P2 Subsidence | 5 |
| Disturbed Surface | 5 |
| P2 Polluted Water: Human Consumption | 4 |
| P2 Hazardous Equip & Facilities | 4 |
| Gravel/Borrow Pit - Undifferentiated | 4 |
| Quarry | 4 |
| P2 Portals | 4 |
| P3 Other | 3 |
| P1 Hazardous Equip & Facilities | 3 |
| P3 Gobs | 3 |
| P1 Clogged Stream Lands | 3 |
| P1 Dangerous Impoundments | 3 |
| P3 High Wall | 3 |
| Quarry | 3 |
| Sand and Gravel Pit | 2 |
| P1 Dangerous Slides | 2 |
| P2 Dangerous Highwalls | 2 |
| P1 Dangerous Highwalls | 2 |
| P1 Surface Burning | 1 |
| P2 Dangerous Piles & Embankments | 1 |
| P1 Clogged Streams | 1 |
| P2 Dangerous Slides | 1 |
| P1 Dangerous Piles & Embankments | 1 |
| P1 Industrial/Residential Waste | 1 |
| Mine Shaft | 1 |
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.
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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.
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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.
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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.
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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.
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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.
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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.
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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).
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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.