Abandoned mines in Carbon County, Wyoming

1. Mine openings

   shafts, adits, air shafts, portals and vertical openings: the ways into underground workings
   305 27.5%
2. Prospect pits and trenches

   shallow exploration diggings that never became a mine
   325 29.3%
3. Mines and surface workings

   labelled mines, open pits, strip mines, placer and hydraulic workings
   116 10.5%
4. Quarries, gravel and borrow pits

   construction-material and industrial-mineral extraction
   144 13.0%
5. Dumps, tailings, spoil and gob

   what mining left above ground
   83 7.5%
6. Mills, tipples and facilities

   processing plants and hazardous structures
   11 1.0%
7. Other reclamation problems

   highwalls, subsidence, polluted or clogged water, fires, slides and gases in OSMRE's inventory
   115 10.4%
8. Other

   symbols outside the classes above
   9 0.8%

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.

…and 245 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.

1. 2023 Walcott Pit

   Surface metal/non-metal · Empire Sand & Gravel Company Inc · MSHA ID 4801350
   Abandoned 1983-01-03
2. Agnate Mine

   Underground coal · Agnate LLC · MSHA ID 4801607
   Abandoned 2002-01-01
3. Arrow-Shield

   Surface metal/non-metal · Ace Engineering, Inc. · MSHA ID 4801778
   Abandoned 2014-10-30
4. B L M Rock Quarry

   Surface metal/non-metal · Rissler & Mc Murry Company · MSHA ID 4801273
   Abandoned 1981-06-15
5. Basin Mines

   Surface coal · Energy Development Company · MSHA ID 4801367
   Abandoned and Sealed 1982-11-01
6. Blm No 1 Pit

   Surface metal/non-metal · Sunrise Construction Company Inc · MSHA ID 4801385
   Abandoned 1985-07-16
7. Blue Sky #1

   Surface coal · Wyoming & West Virginia Inc · MSHA ID 4801494
   Abandoned 1991-12-31
8. Brokaw Pit

   Surface metal/non-metal · Gilpatrick Construction Company Inc · MSHA ID 4801212
   Abandoned 1980-10-17
9. Carbon Basin Mine

   Surface coal · Belco Petroleum Corp · MSHA ID 4801406
   Abandoned 1984-03-01
10. Carbon Basin Mine

    Surface coal · Energy Reserves Inc · MSHA ID 4801470
    Abandoned 1997-05-13
11. Circle D Gravel D-1

    Surface metal/non-metal · Circle D Gravel · MSHA ID 4801682
    Abandoned 2007-08-30
12. County Line Pit

    Surface metal/non-metal · Gilpatrick Construction Company Inc · MSHA ID 4801217
    Abandoned 1979-05-11
13. CRUSHER #1

    Surface metal/non-metal · Carbon County Concrete Inc · MSHA ID 4801571
    Abandoned 2006-06-01
14. Elk Mountain Mine

    Surface coal · Arch of Wyoming LLC · MSHA ID 4801694
    Abandoned 2015-05-18
15. Jarreal Gravel Pit

    Surface metal/non-metal · Big Horn Construction · MSHA ID 4801166
    Abandoned 1978-04-14
16. Jenkins Project

    Surface metal/non-metal · Uranium Supply Services Corp · MSHA ID 4801132
    Abandoned 1982-12-16
17. Lost Cause Pit

    Surface metal/non-metal · Quillen Company · MSHA ID 4801307
    Abandoned 1982-02-16
18. Loudin Drilling Inc

    Surface coal · Loudin Drilling Inc · MSHA ID 4801495
    Abandoned 1991-02-11
19. Medicine Bow Mine

    Surface coal · Arch Of Wyoming LLC · MSHA ID 4800900
    Abandoned 2006-06-23
20. Mineralwod Inc Mine And Mill

    Surface metal/non-metal · Mineralwod Inc · MSHA ID 4801145
    Abandoned 1979-06-18
21. MUDDY CREEK GRAVEL

    Surface metal/non-metal · Muddy Creek Gravel · MSHA ID 4801601
    Abandoned 2003-09-16
22. Petrotomics Mill

    Facility metal/non-metal · Petrotomics Company · MSHA ID 4800588
    Abandoned 1985-12-18
23. Petrotomics Mine

    Surface metal/non-metal · Petrotomics Company · MSHA ID 4800826
    Abandoned 1986-11-26
24. Platte Valley Gravel

    Surface metal/non-metal · Platte Valley Forrest Management LLC · MSHA ID 4801754
    Abandoned 2014-05-14
25. Portable Crusher

    Surface metal/non-metal · B C N Construction · MSHA ID 4801685
    Abandoned 2013-07-23
26. Portable Processing Equipment

    Surface metal/non-metal · Recycled Materials Company, Inc. · MSHA ID 0504961
    Abandoned 2015-06-01
27. Rawlins Quarry

    Surface metal/non-metal · Pete Lien & Sons Inc · MSHA ID 4801369
    Abandoned 2014-04-10
28. Rawlins S & G Blm Pit

    Surface metal/non-metal · Rawlins Sand & Gravel Company · MSHA ID 4801235
    Abandoned 1979-08-24
29. Rawlins Sand & Gravel Company

    Surface metal/non-metal · Rawlins Sand & Gravel Company · MSHA ID 4800293
    Abandoned 1986-08-04
30. Rimrock Nos 1&2 Strip

    Surface coal · Resource Exploration & Mining Inc · MSHA ID 4800172
    Abandoned and Sealed 1983-06-01
31. Rock River State Pit

    Surface metal/non-metal · Gilpatrick Construction Company Inc · MSHA ID 4801220
    Abandoned 1980-10-17
32. Rosebud Coal Sales Company

    Surface coal · Rosebud Coal Sales Company · MSHA ID 4800084
    Abandoned and Sealed 1995-09-25
33. Sand & Gravel

    Surface metal/non-metal · Martinez Max S & G · MSHA ID 4800285
    Abandoned 1979-03-23
34. Sand Creek Pit

    Surface metal/non-metal · Gilpatrick Construction Company Inc · MSHA ID 4801222
    Abandoned 1980-10-17
35. SCORIA PIT

    Surface metal/non-metal · Dunn Trucking Inc · MSHA ID 4801599
    Abandoned 2005-07-02
36. Seahorn Brothers Sand And Gravel

    Surface metal/non-metal · Seahorn Brothers · MSHA ID 4800291
    Abandoned 1981-06-17
37. Seminoe I

    Surface coal · Arch Mineral Corp · MSHA ID 4800514
    Abandoned and Sealed 1986-01-01
38. Seminoe II Mine

    Facility coal · Arch Of Wyoming LLC · MSHA ID 4800828
    Abandoned 2015-05-18
39. Shirley Basin Mine And Mill

    Surface metal/non-metal · Pathfinder Mines Corp · MSHA ID 4800490
    Abandoned 1992-07-10
40. Shirley Basin Underground No 1

    Underground metal/non-metal · Pathfinder Mines Corp · MSHA ID 4801368
    Abandoned 1982-09-07
41. Shoshone No 1 Mine

    Underground coal · RAG Shoshone Coal Corp · MSHA ID 4801186
    Abandoned and Sealed 2001-08-24
42. State Pit

    Surface metal/non-metal · Gilpatrick Construction Company Inc · MSHA ID 4801219
    Abandoned 1980-10-17
43. Sullivan Mine

    Surface metal/non-metal · Minerals Division Kerr-Mc Gee Corpo · MSHA ID 4800659
    Abandoned 1979-11-16
44. Thomas Coal Mine

    Underground coal · Thomas Coal Mine · MSHA ID 4801477
    Abandoned 1994-03-14
45. Toothacher Pit

    Surface metal/non-metal · Gilpatrick Construction Company Inc · MSHA ID 4801285
    Abandoned 1979-08-21
46. Vanguard I Mine

    Underground coal · Energy Development Company · MSHA ID 4800168
    Abandoned 1975-04-29
47. Vanguard No 3

    Underground coal · Energy Development Company · MSHA ID 4801001
    Abandoned 1977-09-13
48. Vanguard No2

    Underground coal · Energy Development Company · MSHA ID 4800948
    Abandoned and Sealed 1984-08-07
49. Wash Plant

    Surface metal/non-metal · HB Lee Construction · MSHA ID 4801896
    Abandoned 2026-05-15
50. Wood Mountain Crushing Site

    Surface metal/non-metal · Lamb Construction Company · MSHA ID 4801280
    Abandoned 1980-07-01
51. Wyoming Highway Department Pit

    Surface metal/non-metal · Lamb Construction Company · MSHA ID 4801276
    Abandoned 1980-07-01

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

• Fremont County 2,398
• Crook County 919
• Sweetwater County 691
• Albany County 428
• Big Horn County 427
• Johnson County 254
• Natrona County 231
• Lincoln County 212
• Converse County 198
• Park County 179
• Campbell County 179
• Laramie County 165

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.