Abandoned mines in Lemhi County, Idaho

1. Mine openings

   shafts, adits, air shafts, portals and vertical openings: the ways into underground workings
   501 25.9%
2. Prospect pits and trenches

   shallow exploration diggings that never became a mine
   1,277 66.1%
3. Mines and surface workings

   labelled mines, open pits, strip mines, placer and hydraulic workings
   44 2.3%
4. Quarries, gravel and borrow pits

   construction-material and industrial-mineral extraction
   79 4.1%
5. Dumps, tailings, spoil and gob

   what mining left above ground
   31 1.6%

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.

1. 7 MILE P. P.

   Surface metal/non-metal · 7 Mile S & G · MSHA ID 1001980
   Abandoned 2001-07-26
2. Arnett Creek Placer Pit #1

   Surface metal/non-metal · American Gold Resources Corp · MSHA ID 1001793
   Abandoned 1988-08-15
3. Beartrack Mine

   Surface metal/non-metal · Meridian Beartrack Company · MSHA ID 1001574
   Abandoned 2005-09-26
4. Blackbird Mine

   Underground metal/non-metal · Noranda Mining Inc · MSHA ID 1000533
   Abandoned 1991-12-05
5. Cedarrapids 10 X 24

   Surface metal/non-metal · Stoddard Construction · MSHA ID 1002185
   Abandoned 2025-03-10
6. Dahle's Red-E-Mix Washer

   Facility metal/non-metal · Dahle's Red-E-Mix, Inc. · MSHA ID 1001896
   Abandoned 2022-05-17
7. Democrat Mine

   Underground metal/non-metal · Democrat Resources LLC · MSHA ID 1000467
   Abandoned 2013-01-01
8. Don Adams Placer

   Surface metal/non-metal · Tylox Inc · MSHA ID 1001606
   Abandoned 1984-02-24
9. Gilmore Mine

   Underground metal/non-metal · All Minerals Corp · MSHA ID 1001527
   Abandoned 1982-08-12
10. Gold Express

    Underground metal/non-metal · Gold Express Corp · MSHA ID 1001747
    Abandoned 1988-08-30
11. Golway

    Surface metal/non-metal · Salmon City Gold Company · MSHA ID 1001608
    Abandoned 1984-03-05
12. Gypsum mine

    Surface metal/non-metal · Thermocal Minerals of Idaho LLC · MSHA ID 1002289
    Abandoned 2019-04-12
13. Havenman Pit

    Surface metal/non-metal · Dahle'S Red-E-Mix · MSHA ID 1000782
    Abandoned 1979-11-07
14. Iron Creek Mine

    Underground metal/non-metal · Idaho Cobalt Company · MSHA ID 1002287
    Abandoned 2019-05-24
15. Junction Mill

    Facility metal/non-metal · Monida Nuclear Fuel & Silver Mine · MSHA ID 1001041
    Abandoned 1978-09-06
16. Kirtley Creek Mine

    Surface metal/non-metal · Kirtley Creek Mining LLC · MSHA ID 1001895
    Abandoned 2023-10-10
17. Lead Hill

    Surface metal/non-metal · Monida Nuclear Fuel & Silver Mine · MSHA ID 1001040
    Abandoned 1978-09-06
18. Metron Gold Mine

    Surface metal/non-metal · Metron Resources Inc · MSHA ID 1001811
    Abandoned 1988-08-15
19. Pope Shenon Mine

    Underground metal/non-metal · DDR Holdings LLC · MSHA ID 1002111
    Abandoned 2008-02-21
20. Pope-Shenon

    Underground metal/non-metal · R Co Resources Inc · MSHA ID 1000207
    Abandoned 1989-09-21
21. Rams Horn Mine

    Underground metal/non-metal · Monida Nuclear Fuel & Silver Mine · MSHA ID 1001020
    Abandoned 1978-09-06
22. Retrack Placer

    Surface metal/non-metal · Doloughan Construction LLC. · MSHA ID 1002321
    Abandoned 2020-05-20
23. Salmon Canyon Mine

    Underground metal/non-metal · Salmon Canyon Copper Co · MSHA ID 1000400
    Abandoned 1979-02-26
24. Silver Moon Mine

    Underground metal/non-metal · R D Minerals Company · MSHA ID 1000416
    Abandoned 1982-01-13
25. Silver Star Mine

    Surface metal/non-metal · Boyle Creek Mining Inc · MSHA ID 1001019
    Abandoned 1978-09-06
26. Tecumseh

    Underground metal/non-metal · James Lortz · MSHA ID 1002083
    Abandoned 2006-03-13
27. Twin Peaks Mine

    Underground metal/non-metal · Hoffman Engineering Inc · MSHA ID 1001510
    Abandoned 1981-01-01
28. Weaver Mining Claims

    Underground metal/non-metal · Mining Corp Inc · MSHA ID 1001392
    Abandoned 1980-01-01
29. Williams Creek Community Pit

    Surface metal/non-metal · U S Department Of The Interior-Bureau Of Labor · MSHA ID 1001107
    Abandoned 1978-12-01
30. Williams Creek Shale Pit

    Surface metal/non-metal · U S Bureau Of Land Management · MSHA ID 1001373
    Abandoned 1980-04-03
31. YELLOW JACKET

    Surface metal/non-metal · United States Antimony Corp · MSHA ID 1001804
    Abandoned 1998-09-11
32. YELLOW JACKET UG

    Underground metal/non-metal · United States Antimony Corp · MSHA ID 1001928
    Abandoned 2000-02-01

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

• Shoshone County 2,127
• Blaine County 1,606
• Owyhee County 1,364
• Custer County 1,282
• Idaho County 888
• Butte County 661
• Bonner County 412
• Valley County 389
• Boise County 353
• Elmore County 345
• Adams County 298
• Cassia County 274

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.