Abandoned mines in Albany County, Wyoming

1. Mine openings

   shafts, adits, air shafts, portals and vertical openings: the ways into underground workings
   96 16.1%
2. Prospect pits and trenches

   shallow exploration diggings that never became a mine
   262 43.9%
3. Mines and surface workings

   labelled mines, open pits, strip mines, placer and hydraulic workings
   64 10.7%
4. Quarries, gravel and borrow pits

   construction-material and industrial-mineral extraction
   85 14.2%
5. Dumps, tailings, spoil and gob

   what mining left above ground
   36 6.0%
6. Mills, tipples and facilities

   processing plants and hazardous structures
   6 1.0%
7. Other reclamation problems

   highwalls, subsidence, polluted or clogged water, fires, slides and gases in OSMRE's inventory
   47 7.9%
8. Other

   symbols outside the classes above
   1 0.2%

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 19 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. A6j

   Surface metal/non-metal · Sterling Paving Company · MSHA ID 4800530
   Abandoned 1987-01-21
2. A6j-2

   Surface metal/non-metal · Sterling Paving Company · MSHA ID 4800560
   Abandoned 1987-01-21
3. ADVENTURE STONE LLC

   Surface metal/non-metal · Adventure Stone Llc · MSHA ID 4801550
   Abandoned 2001-07-09
4. Bath Shale Quarry

   Surface metal/non-metal · Mountain Cement Company · MSHA ID 4801504
   Abandoned 1993-05-14
5. Buford Pit

   Surface metal/non-metal · Union Pacific Railroad · MSHA ID 4800521
   Abandoned 1985-07-16
6. Easterling Pit

   Surface metal/non-metal · Yeoman Construction Company Inc · MSHA ID 4800328
   Abandoned 1979-12-20
7. Faye Pit

   Surface metal/non-metal · Sterling Sand & Gravel Company Of Wyoming · MSHA ID 4800307
   Abandoned 1981-06-17
8. GOLD CAMP 2

   Surface metal/non-metal · Pink Misty Minerals and Gems LLC · MSHA ID 4801878
   Abandoned 2024-09-19
9. GOLD CAMP I

   Surface metal/non-metal · Pink Misty Minerals and Gems LLC · MSHA ID 4801877
   Abandoned 2024-09-19
10. Hutton Lake Shale Quarry

    Surface metal/non-metal · Mountain Cement Company · MSHA ID 4800540
    Abandoned 1992-08-26
11. Justin Pit

    Surface metal/non-metal · Sterling Sand & Gravel Company Of Wyoming · MSHA ID 4800269
    Abandoned 1980-03-18
12. Kay Pit

    Surface metal/non-metal · Rissler & Mc Murry Company · MSHA ID 4801202
    Abandoned 1980-03-19
13. Laramie Quarry

    Surface metal/non-metal · C & M Ready Mix · MSHA ID 4801441
    Abandoned 1985-12-06
14. North Pit

    Surface metal/non-metal · Sterling Sand & Gravel Company Of Wyoming · MSHA ID 4801443
    Abandoned 1987-08-03
15. Portable Crusher #1

    Surface metal/non-metal · Mountain Cement Company LLC · MSHA ID 4800529
    Abandoned 2021-06-29
16. Portable Crusher number 1

    Surface metal/non-metal · LOUDWIRE DIESEL LLC · MSHA ID 4801879
    Abandoned 2026-08-24
17. Red Buttes

    Surface metal/non-metal · Mountain Cement Company · MSHA ID 4800630
    Abandoned 1992-08-26
18. Sheep Creek Pit

    Surface metal/non-metal · Ed Loloff Construction Inc · MSHA ID 4801281
    Abandoned 1981-06-17
19. Squire Sisters Pit

    Surface metal/non-metal · Sterling Paving Company · MSHA ID 4801416
    Abandoned 1985-07-16
20. State Rock Pit

    Surface metal/non-metal · Sterling Sand & Gravel Company Of Wyoming · MSHA ID 4800024
    Abandoned 1980-03-18
21. Tuffa Pit

    Surface metal/non-metal · Mountain Cement Company · MSHA ID 4800288
    Abandoned 1986-07-11
22. University Stone Quarry

    Surface metal/non-metal · University Of Wyoming · MSHA ID 4800023
    Abandoned 1981-06-17
23. Yeoman Crushing Plant

    Surface metal/non-metal · Yeoman Construction Company Inc · MSHA ID 4801160
    Abandoned 1980-03-19

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
• Carbon County 713
• Sweetwater County 691
• 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.