Abandoned mines in Sebastian County, Arkansas
Sebastian County, Arkansas has 252 mine and prospect features on USGS topographic maps published 1947–1987, including 1 mine openings (shafts, adits and air shafts); 2 of the features carry a name on the map. OSMRE's abandoned mine land inventory lists 158 problems in the county, 91 of them not yet reclaimed. MSHA's register carries 60 mines in the county with status Abandoned or Abandoned and Sealed.
Every mine and prospect feature the USGS digitized from historical topographic maps covering Sebastian 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)
- 252
- Mine openings
- 1
- OSMRE problems unreclaimed
- 91
- MSHA mines marked abandoned
- 60
-
42 10.2%Mine openingsshafts, adits, air shafts, portals and vertical openings: the ways into underground workings
-
190 46.3%Mines and surface workingslabelled mines, open pits, strip mines, placer and hydraulic workings
-
51 12.4%Quarries, gravel and borrow pitsconstruction-material and industrial-mineral extraction
-
46 11.2%Dumps, tailings, spoil and gobwhat mining left above ground
-
3 0.7%Mills, tipples and facilitiesprocessing plants and hazardous structures
-
78 19.0%Other reclamation problemshighwalls, subsidence, polluted or clogged water, fires, slides and gases in OSMRE's inventory
| Name on map | Feature |
|---|---|
| Central Coal and Coke Company | Strip Mine area |
| Woodson Mine | Strip Mine area |
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.
| Problem area | Problem | Status |
|---|---|---|
| Backbone Ridge | P2 Dangerous Piles & Embankments | Reclamation Pending |
| Backbone Ridge | P2 Hazardous Water Bodies | Reclamation Pending |
| Backbone Ridge | P2 Hazardous Water Bodies | Reclamation Pending |
| Backbone Ridge | P2 Vertical Openings | Reclamation Pending |
| Barling City | P1 Dangerous Piles & Embankments | Reclamation Pending |
| Barling City | P1 Hazardous Water Bodies | Reclamation Pending |
| Barling City | P1 Vertical Openings | Reclamation Pending |
| Barling City | P2 Hazardous Water Bodies | Reclamation Completed |
| Barling City | P2 Vertical Openings | Reclamation Completed |
| Barling City | P3 Spoil Area | Reclamation Pending |
| Beaulah | P1 Vertical Openings | Reclamation Completed |
| Beaulah | P1 Vertical Openings | In Reclamation |
| Beaulah | P2 Dangerous Highwalls | Reclamation Completed |
| Beaulah | P3 Mine Opening | In Reclamation |
| Beaulah | P3 Spoil Area | Reclamation Completed |
| Bonanza City | P1 Vertical Openings | In Reclamation |
| Bonanza City | P2 Dangerous Highwalls | Reclamation Pending |
| Bonanza City | P2 Portals | Reclamation Completed |
| Bonanza City | P2 Vertical Openings | Reclamation Completed |
| Bonanza City | P3 Pits | Reclamation Pending |
| Bonanza City | P3 Slump | Reclamation Pending |
| Bonanza City | P3 Spoil Area | Reclamation Pending |
| Bonaza(GoldTrap) | P1 Vertical Openings | Reclamation Completed |
| Browntown | P1 Subsidence | Reclamation Completed |
| Browntown | P1 Vertical Openings | Reclamation Completed |
| Browntown | P2 Dangerous Highwalls | In Reclamation |
| Browntown | P2 Hazardous Water Bodies | In Reclamation |
| Browntown | P2 Industrial/Residential Waste | Reclamation Completed |
| Browntown | P2 Portals | Reclamation Completed |
| Browntown | P3 Industrial/Residential Waste | Reclamation Pending |
| Browntown | P3 Mine Opening | In Reclamation |
| Browntown | P3 Pits | Reclamation Pending |
| Browntown | P3 Spoil Area | Reclamation Pending |
| Double A Slope | P2 Hazardous Water Bodies | In Reclamation |
| Double A Slope | P2 Portals | Reclamation Completed |
| Excelsior | P1 Portals | Reclamation Completed |
| Excelsior | P1 Vertical Openings | Reclamation Completed |
| Excelsior | P2 Dangerous Highwalls | Reclamation Pending |
| Excelsior | P2 Dangerous Piles & Embankments | Reclamation Pending |
| Excelsior | P2 Portals | Reclamation Pending |
| Excelsior | P2 Vertical Openings | Reclamation Completed |
| Excelsior | P3 Pits | Reclamation Pending |
| Excelsior | P3 Spoil Area | Reclamation Pending |
| Excesior | P1 Vertical Openings | Reclamation Completed |
| FT. CHAFFEE (Varnadore) , (Clark) | P2 Dangerous Highwalls | In Reclamation |
| FT. CHAFFEE (Varnadore) , (Clark) | P2 Dangerous Piles & Embankments | In Reclamation |
| FT. CHAFFEE (Varnadore) , (Clark) | P2 Hazardous Water Bodies | In Reclamation |
| FT. CHAFFEE (Varnadore) , (Clark) | P3 Spoil Area | Reclamation Completed |
| Hackett City East | P1 Hazardous Equip & Facilities | Reclamation Completed |
| Hackett City East | P1 Subsidence | Reclamation Completed |
| Hackett City East | P3 Gobs | Reclamation Pending |
| Hackett City East | P3 Spoil Area | Reclamation Pending |
| Hackett City West | P2 Dangerous Highwalls | Reclamation Completed |
| Hackett City West | P2 Dangerous Piles & Embankments | Reclamation Completed |
| Hackett City West | P2 Portals | In Reclamation |
| Hackett City West | P2 Vertical Openings | Reclamation Completed |
| Hackett City West | P3 Spoil Area | Reclamation Pending |
| Harmony Road | P1 Dangerous Piles & Embankments | In Reclamation |
| Harmony Road | P1 Vertical Openings | Reclamation Completed |
| Harmony Road | P2 Dangerous Highwalls | In Reclamation |
| Harmony Road | P2 Dangerous Piles & Embankments | In Reclamation |
| Harmony Road | P2 Hazardous Equip & Facilities | Reclamation Pending |
| Harmony Road | P2 Hazardous Water Bodies | In Reclamation |
| Harmony Road | P2 Portals | Reclamation Pending |
| Hartford City | P1 Subsidence | Reclamation Completed |
| Hartford City | P2 Clogged Streams | Reclamation Pending |
| Hartford City | P2 Subsidence | Reclamation Pending |
| Hartford City | P2 Vertical Openings | Reclamation Pending |
| Hartford City | P3 Equipment Facility | Reclamation Pending |
| Hartford City | P3 Gobs | Reclamation Pending |
| Hartford City | P3 Mine Opening | Reclamation Pending |
| Hartford City | P3 Slump | Reclamation Pending |
| Highway 10 West | P1 Vertical Openings | In Reclamation |
| Highway 10 West | P2 Portals | Reclamation Completed |
| Highway 10 West | P2 Vertical Openings | Reclamation Completed |
| Highway 10 West | P3 Slump | Reclamation Pending |
| Highway 10 West | P3 Spoil Area | Reclamation Pending |
| Highway 45 East | P2 Dangerous Highwalls | Reclamation Completed |
| Highway 45 East | P2 Dangerous Piles & Embankments | Reclamation Completed |
| Highway 45 East | P3 Spoil Area | Reclamation Completed |
| Huntington | P1 Subsidence | Reclamation Completed |
| Huntington | P2 Clogged Streams | Reclamation Completed |
| Huntington | P2 Dangerous Highwalls | Reclamation Completed |
| Huntington | P2 Dangerous Highwalls | In Reclamation |
| Huntington | P2 Dangerous Highwalls | In Reclamation |
| Huntington | P2 Dangerous Piles & Embankments | Reclamation Completed |
| Huntington | P2 Dangerous Piles & Embankments | In Reclamation |
| Huntington | P2 Hazardous Water Bodies | Reclamation Completed |
| Huntington | P2 Industrial/Residential Waste | Reclamation Completed |
| Huntington | P2 Portals | In Reclamation |
| Huntington | P2 Vertical Openings | Reclamation Pending |
| Huntington | P3 Pits | Reclamation Pending |
| Huntington | P3 Spoil Area | Reclamation Pending |
| James Fork East | P1 Subsidence | Reclamation Completed |
| James Fork East | P1 Vertical Openings | Reclamation Completed |
| James Fork East | P3 Gobs | Reclamation Pending |
| Montreal | P2 Dangerous Highwalls | Reclamation Pending |
| Montreal | P2 Hazardous Equip & Facilities | Reclamation Pending |
| Montreal | P3 Gobs | Reclamation Completed |
| Montreal | P3 Slump | Reclamation Pending |
| Montreal | P3 Spoil Area | Reclamation Pending |
| Montreal East | P2 Dangerous Highwalls | Reclamation Pending |
| New Jenny Lind | P1 Subsidence | Reclamation Completed |
| New Jenny Lind | P1 Vertical Openings | Reclamation Completed |
| New Jenny Lind | P2 Dangerous Highwalls | Reclamation Completed |
| New Jenny Lind | P2 Dangerous Highwalls | In Reclamation |
| New Jenny Lind | P2 Dangerous Piles & Embankments | In Reclamation |
| New Jenny Lind | P2 Dangerous Slides | Reclamation Completed |
| New Jenny Lind | P2 Hazardous Water Bodies | Reclamation Completed |
| New Jenny Lind | P2 Industrial/Residential Waste | In Reclamation |
| New Jenny Lind | P2 Subsidence | Reclamation Pending |
| New Jenny Lind | P2 Subsidence | Reclamation Completed |
| New Jenny Lind | P2 Vertical Openings | Reclamation Completed |
| New Jenny Lind | P3 Slump | Reclamation Pending |
| New Jenny Lind | P3 Spoil Area | Reclamation Pending |
| Number 5 Hill | P1 Dangerous Highwalls | Reclamation Completed |
| Number 5 Hill | P2 Dangerous Highwalls | Reclamation Completed |
| Number 5 Hill | P2 Dangerous Piles & Embankments | Reclamation Completed |
| Number 5 Hill | P2 Portals | Reclamation Pending |
| Number 5 Hill | P2 Portals | Reclamation Completed |
| Number 5 Hill | P2 Vertical Openings | Reclamation Pending |
| Old Jenny Lind | P1 Subsidence | Reclamation Completed |
| Old Jenny Lind | P2 Dangerous Highwalls | Reclamation Pending |
| Old Jenny Lind | P2 Dangerous Piles & Embankments | Reclamation Pending |
| Old Jenny Lind | P2 Hazardous Water Bodies | Reclamation Pending |
| Old Jenny Lind | P2 Industrial/Residential Waste | Reclamation Pending |
| Old Jenny Lind | P2 Portals | Reclamation Pending |
| Old Jenny Lind | P2 Subsidence | Reclamation Completed |
| Old Jenny Lind | P2 Vertical Openings | Reclamation Pending |
| Old Jenny Lind | P2 Vertical Openings | In Reclamation |
| Old Jenny Lind | P3 Mine Opening | Reclamation Pending |
| Old Jenny Lind | P3 Pits | Reclamation Pending |
| Old Jenny Lind | P3 Slump | Reclamation Pending |
| Old Jenny Lind Loop(England) | P1 Vertical Openings | Reclamation Completed |
| Patterson | P1 Vertical Openings | In Reclamation |
| Patterson | P2 Dangerous Piles & Embankments | Reclamation Completed |
| Patterson | P2 Polluted Water: Agricultural & Industrial | Reclamation Completed |
| Patterson | P3 Slump | Reclamation Pending |
| Prairie Creek | P1 Subsidence | Reclamation Completed |
| Prairie Creek | P1 Vertical Openings | Reclamation Completed |
| Prairie Creek | P2 Dangerous Piles & Embankments | Reclamation Completed |
| Prairie Creek | P2 Hazardous Water Bodies | Reclamation Completed |
| Prairie Creek | P2 Polluted Water: Agricultural & Industrial | Reclamation Pending |
| Prairie Creek | P2 Vertical Openings | In Reclamation |
| Prairie Creek | P3 Gobs | Reclamation Pending |
| Prairie Creek | P3 Mine Opening | Reclamation Pending |
| Prairie Creek | P3 Mine Opening | Reclamation Pending |
| Prairie Creek | P3 Slump | Reclamation Pending |
| Prairie Creek | P3 Spoil Area | Reclamation Pending |
| Prairie Creek | P3 Water Problems | Reclamation Completed |
…and 8 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.
-
Arbuckle PortAbandoned 1979-11-10Facility coal · Arkansas Valley Coal Services · MSHA ID 0301422
-
Black ReclamationAbandoned 1985-11-01Facility coal · B & M Coal Company Inc · MSHA ID 0301521
-
Bonanza PlantAbandoned 1992-09-01Facility coal · Process Plant Operators Inc · MSHA ID 0301509
-
Bonanza QuarryAbandoned 2011-07-05Surface metal/non-metal · APAC-Central, Inc. · MSHA ID 0302014
-
COPPERHEAD QUARRYAbandoned 2001-08-13Surface metal/non-metal · Mc George Contracting Company Inc · MSHA ID 0301821
-
Farrell-Cooper StripAbandoned 1978-06-26Surface coal · Farrell-Cooper Mining Company · MSHA ID 0300906
-
Five Hill #1Abandoned and Sealed 1983-12-14Surface coal · Dominion Coal & Timber Corp · MSHA ID 0301556
-
Forsgren Jenny Lind Quarry and PlantAbandoned 2005-01-25Facility metal/non-metal · Forsgren Inc · MSHA ID 0301876
-
Fort Smith PitAbandoned 2018-12-21Surface metal/non-metal · Acme Brick Company · MSHA ID 0300133
-
FORT SMITH SAND PLTAbandoned 1998-01-12Surface metal/non-metal · Arkhola Sand & Gravel Company · MSHA ID 0301576
-
Franklin No 2 StripAbandoned 1981-11-30Surface coal · Midwest Coal & Energy Corp · MSHA ID 0301138
-
Frog Town #1Abandoned and Sealed 1986-07-23Surface coal · Bonnidee Energy & Land Company Inc · MSHA ID 0301594
-
G & G CONSTRUCTIN CO.Abandoned 2005-09-30Surface metal/non-metal · G & G Construction Company · MSHA ID 0301789
-
GREEN VALLEY COAL CO #1Abandoned 1999-01-05Surface metal/non-metal · Green Valley Coal Company Inc · MSHA ID 0301734
-
Green Valley Coal Co No 1Abandoned 1992-12-22Facility coal · Green Valley Coal Company Inc · MSHA ID 0301708
-
HACKETT PITAbandoned 2001-08-14Surface metal/non-metal · Hackett Stone · MSHA ID 0301375
-
Hackett ProjectAbandoned 1987-01-20Facility coal · Davis Coal Corp · MSHA ID 0301617
-
Hancock QuarryAbandoned 2013-09-19Surface metal/non-metal · Donaho Stone LLC · MSHA ID 0302005
-
Hartford #1Abandoned 2003-10-21Surface metal/non-metal · Rock-It Natural Stone · MSHA ID 0301861
-
Hartford #1 StripAbandoned 1978-04-06Surface coal · New Century Energies Inc · MSHA ID 0301345
-
Hartford #2Abandoned 2006-02-22Surface metal/non-metal · Liles Quarries · MSHA ID 0301881
-
Hilltop #3Abandoned 1992-04-01Surface coal · H H H Mining Company Inc · MSHA ID 0301550
-
Kimwyn No Ii StripAbandoned 1979-10-01Underground coal · Midwest Coal & Energy Corp · MSHA ID 0301410
-
Marilyn #1 Coal Loading FacilityAbandoned 1979-10-01Facility coal · B & T Coal Enterprises · MSHA ID 0301365
-
Mid-South QuarriesAbandoned 1993-02-18Surface metal/non-metal · Mid-South Quarries Inc · MSHA ID 0301713
-
Midland Mine No 1Abandoned and Sealed 1985-05-14Surface coal · Midland Coal Company · MSHA ID 0301575
-
Mine #1Abandoned 1993-03-31Surface coal · Koal Industries International Inc · MSHA ID 0300278
-
Mine #1Abandoned 1989-10-17Surface coal · R & S Coal Company · MSHA ID 0301599
-
Mine #1Abandoned 1991-01-03Surface coal · Russ & Sons Inc · MSHA ID 0301623
-
Mine No 1Abandoned 1973-10-16Surface coal · Poteau Mountain Coal Company · MSHA ID 0300720
-
Mine No 1Abandoned 1984-05-04Facility coal · Dee Coal Company · MSHA ID 0301560
-
Mine No 1Abandoned 1984-05-04Facility coal · H & H Coal Company · MSHA ID 0301563
-
Mine No 1Abandoned 1997-12-24Surface coal · Johnson Coal Company · MSHA ID 0301712
-
No 1 StripAbandoned 1979-10-01Surface coal · Coal Enterprises Inc · MSHA ID 0301239
-
No 1 Strip MineAbandoned 1979-10-01Surface coal · Hackett Coal Co · MSHA ID 0300275
-
No 2 StripAbandoned 1975-09-15Surface coal · Hackett Coal Co · MSHA ID 0300540
-
North 19th Street PlantAbandoned 1981-10-21Surface metal/non-metal · Fort Smith Sand & Gravel Company · MSHA ID 0300389
-
North Custer QuarryAbandoned 2013-08-19Surface metal/non-metal · APAC-Central, Inc. · MSHA ID 0301930
-
Penny #1Abandoned 2017-10-26Surface coal · Comer Mining Company · MSHA ID 0301569
-
Pine Mountain No 1Abandoned 1990-10-19Surface coal · Tri-State Coal Company Inc · MSHA ID 0301596
-
Pine's Stone Co Hartford DivisionAbandoned 2012-01-24Surface metal/non-metal · Pine's Stone Co Hartford Division · MSHA ID 0301957
-
Pink #1 StripAbandoned 1979-11-15Surface coal · C & E Coal Company · MSHA ID 0301402
-
Plant No 1Abandoned 1976-05-17Facility coal · Hackett Coal Co · MSHA ID 0301134
-
PORTABLE PLANTAbandoned 2002-12-02Surface metal/non-metal · Foy Brown Rental Company · MSHA ID 0301798
-
Poteau No 1 SurfaceAbandoned 1978-02-16Surface coal · Cavanal Mining Corp · MSHA ID 0301331
-
Prairie Creek Mine #1Abandoned and Sealed 1984-10-29Surface coal · Hanna Resources Inc · MSHA ID 0301574
-
Quality No 1Abandoned and Sealed 1986-03-12Surface coal · Quality Coal Company · MSHA ID 0301600
-
Rippy Sanders -StripAbandoned 1977-08-25Surface coal · Rippy Mining Company Inc · MSHA ID 0301342
-
Russ #1Abandoned and Sealed 1987-04-24Surface coal · Russ & Sons Inc · MSHA ID 0301589
-
RVQ LAVACAAbandoned 2021-10-01Surface metal/non-metal · RIVER VALLEY QUARRIES LLC · MSHA ID 0302043
-
Sebastian County PitAbandoned 1982-05-21Surface metal/non-metal · Sebastian County Highway Department · MSHA ID 0301369
-
Sebastian MineAbandoned 2026-02-05Underground coal · Sebastian Management LLC · MSHA ID 0301736
-
Shale-CoAbandoned 2002-09-17Facility coal · Johnson Coal & Machinery Corp · MSHA ID 0301716
-
Site #2Abandoned 1985-07-09Facility coal · Mid-States Minerals Company Inc · MSHA ID 0301544
-
Site No 1Abandoned 1983-12-20Facility coal · Riverside Mining Inc · MSHA ID 0301559
-
Skinner MineAbandoned and Sealed 1986-07-07Surface coal · Johnson Coal & Machinery Corp · MSHA ID 0301571
-
Stryton Mine #1Abandoned 2025-12-03Surface coal · M and R Debris Management, LLC · MSHA ID 0300968
-
The Hoover MineAbandoned 1998-06-05Underground coal · James Fork Mining Company · MSHA ID 0301772
-
Tom Emerson Mine-StripAbandoned 1977-06-02Surface coal · Tom Emerson Coal Company · MSHA ID 0300674
-
Wilkem #1Abandoned 2001-03-08Surface coal · Mid-America Mining & Development Inc · MSHA ID 0301726
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 | 70 |
| Coal Mine | 62 |
| Strip Mine | 24 |
| Shale Pit | 19 |
| Shale Pit | 19 |
| P2 Dangerous Highwalls | 17 |
| P1 Vertical Openings | 15 |
| P2 Dangerous Piles & Embankments | 14 |
| P3 Spoil Area | 14 |
| P2 Vertical Openings | 14 |
| P2 Hazardous Water Bodies | 12 |
| Coal Mine | 12 |
| Open Pit Mine or Quarry | 11 |
| P2 Portals | 11 |
| Tailings - Undifferentiated | 10 |
| Disturbed Surface - Pit | 8 |
| P3 Slump | 8 |
| P1 Subsidence | 8 |
| Quarry | 6 |
| P3 Mine Opening | 6 |
| P2 Industrial/Residential Waste | 5 |
| P2 Subsidence | 5 |
| P3 Pits | 5 |
| P3 Gobs | 5 |
| P1 Dangerous Piles & Embankments | 3 |
| Gravel Pit | 3 |
| Quarry | 2 |
| P1 Dangerous Highwalls | 2 |
| P3 Water Problems | 2 |
| P2 Hazardous Equip & Facilities | 2 |
| Open Pit Mine or Quarry | 2 |
| P2 Polluted Water: Agricultural & Industrial | 2 |
| P2 Clogged Streams | 2 |
| Adit | 1 |
| P2 Dangerous Slides | 1 |
| Sand Pit | 1 |
| P1 Hazardous Water Bodies | 1 |
| P3 Industrial/Residential Waste | 1 |
| P3 Equipment Facility | 1 |
| P1 Portals | 1 |
| P1 Hazardous Equip & Facilities | 1 |
| Disturbed Surface | 1 |
| Clay Pit | 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.
-
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.
-
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.
-
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.
-
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.
-
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.
-
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.
-
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).
-
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.