Abandoned mines in Granite County, Montana

1. Mine openings

   shafts, adits, air shafts, portals and vertical openings: the ways into underground workings
   339 42.3%
2. Prospect pits and trenches

   shallow exploration diggings that never became a mine
   321 40.0%
3. Mines and surface workings

   labelled mines, open pits, strip mines, placer and hydraulic workings
   24 3.0%
4. Quarries, gravel and borrow pits

   construction-material and industrial-mineral extraction
   30 3.7%
5. Dumps, tailings, spoil and gob

   what mining left above ground
   35 4.4%
6. Mills, tipples and facilities

   processing plants and hazardous structures
   18 2.2%
7. Other reclamation problems

   highwalls, subsidence, polluted or clogged water, fires, slides and gases in OSMRE's inventory
   35 4.4%

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 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. Bagdad

   Underground metal/non-metal · Mark V Mines (Us) Incorp · MSHA ID 2401848
   Abandoned 1989-08-07
2. Bannack Mine

   Surface metal/non-metal · Excelsior Mining Llc · MSHA ID 2402342
   Abandoned 2015-07-20
3. Bear Creek

   Surface metal/non-metal · Star Minerals Group US LLC · MSHA ID 2402676
   Abandoned 2015-09-03
4. Bear Creek Placer

   Surface metal/non-metal · Bear Creek Placer LLC · MSHA ID 2402573
   Abandoned 2024-11-13
5. Bi-Metallic Mine

   Underground metal/non-metal · Contact Mining Company Inc · MSHA ID 2400543
   Abandoned 1985-03-21
6. Bonanza Mine

   Underground metal/non-metal · Allan Loobey · MSHA ID 2401564
   Abandoned 1981-05-21
7. Camel Hump

   Surface metal/non-metal · AU Source Holdings LLC · MSHA ID 2402680
   Abandoned 2014-11-18
8. Deep Creek Placer

   Surface metal/non-metal · Rocky Mountain Construction Company · MSHA ID 2401728
   Abandoned 1989-08-21
9. Dewey Mine

   Surface metal/non-metal · NH Gold, LLC · MSHA ID 2402668
   Abandoned 2016-08-18
10. Drummond Quarry

    Surface metal/non-metal · Big Horn Calcium Company · MSHA ID 2400655
    Abandoned 1979-03-27
11. Eureka Gulch Placer

    Surface metal/non-metal · Potentate Mining LLC · MSHA ID 2402633
    Abandoned 2022-11-01
12. Fourth Of July

    Underground metal/non-metal · A & A Mining Company · MSHA ID 2401909
    Abandoned 1990-06-05
13. Garnet Project-Nancy Hanks Mine

    Underground metal/non-metal · GrantHartford Corp. · MSHA ID 2402583
    Abandoned 2012-01-01
14. Gem Mountain

    Surface metal/non-metal · Gem Mountain Sapphire · MSHA ID 2401919
    Abandoned 1995-06-23
15. GEM MOUNTAIN

    Surface metal/non-metal · American Gem Corp · MSHA ID 2402065
    Abandoned 2001-09-18
16. Golden Eagle Mines

    Underground metal/non-metal · Butte-Anaconda Consolidated Mining Company · MSHA ID 2401811
    Abandoned 1986-09-22
17. GOLDEN JUBILEE MINE

    Underground metal/non-metal · Gunsinger Group · MSHA ID 2402187
    Abandoned 2016-02-03
18. Granite Portable

    Surface metal/non-metal · Granite County · MSHA ID 2401925
    Abandoned 1994-10-03
19. Great Western

    Underground metal/non-metal · Great Western · MSHA ID 2401732
    Abandoned 1983-09-28
20. ground source

    Surface metal/non-metal · ground source llc · MSHA ID 2402653
    Abandoned 2013-11-14
21. Hope Mines

    Underground metal/non-metal · Contact Mining Company Inc · MSHA ID 2401549
    Abandoned 1982-07-29
22. James W Young Crushing

    Surface metal/non-metal · James W Young Crushing · MSHA ID 2401750
    Abandoned 2009-01-01
23. Kesler Pit

    Surface metal/non-metal · Flint Creek Concrete Products Inc · MSHA ID 2402456
    Abandoned 2007-01-01
24. Lapin Claim

    Surface metal/non-metal · Natural American Gem Mining · MSHA ID 2402289
    Abandoned 2006-04-21
25. Lead King

    Surface metal/non-metal · Garnet Mining Corp · MSHA ID 2401897
    Abandoned 1990-03-22
26. Lucky Lady Mine

    Underground metal/non-metal · Mile-Hi Mining Inc · MSHA ID 2401518
    Abandoned 1980-06-03
27. Mc Donald Mill

    Facility metal/non-metal · Mcm Development · MSHA ID 2401599
    Abandoned 1987-09-18
28. Mc Donald Mill

    Facility metal/non-metal · Mc Donald Mining & Milling · MSHA ID 2401638
    Abandoned 1992-07-21
29. Minerals Processing Mill

    Facility metal/non-metal · Donata Resources Inc · MSHA ID 2401282
    Abandoned 1982-11-04
30. Nancy Hanks

    Surface metal/non-metal · Garnet Mining Corp · MSHA ID 2401898
    Abandoned 1990-03-22
31. Old Dominion

    Underground metal/non-metal · Anaconda Minerals Company · MSHA ID 2401677
    Abandoned 1982-07-26
32. Quartz Gulch Placer

    Surface metal/non-metal · 1990 Boulder Creek · MSHA ID 2401930
    Abandoned 1991-01-08
33. Reynolds City Claim

    Surface metal/non-metal · Skyland Mining · MSHA ID 2401902
    Abandoned 1990-07-18
34. Saranac Mine

    Underground metal/non-metal · Mc Donald Mining & Milling · MSHA ID 2401810
    Abandoned 1987-03-13
35. Sawpit Placer Mine

    Surface metal/non-metal · Howard Mining & Exploration Company · MSHA ID 2401834
    Abandoned 1987-07-14
36. Silver King Mine

    Underground metal/non-metal · Northwest Gold Inc · MSHA ID 2400942
    Abandoned 1982-07-28
37. Silver Reef

    Underground metal/non-metal · C & G Mining Company · MSHA ID 2401592
    Abandoned 1981-09-18
38. Silver Spruce Leaching

    Facility metal/non-metal · Silver Spruce Mining Company · MSHA ID 2401646
    Abandoned 1982-07-12
39. Skalkaho Mine

    Surface metal/non-metal · Skalkaho Grazing Inc · MSHA ID 2401931
    Abandoned 1995-07-03
40. Springtown

    Surface metal/non-metal · DKD Mining LLC · MSHA ID 2402762
    Abandoned 2024-11-13
41. Trout

    Surface metal/non-metal · CIT Construction · MSHA ID 2402710
    Abandoned 2021-02-05
42. Victory Mine #1

    Underground metal/non-metal · Victory Mining Company · MSHA ID 2401358
    Abandoned 1986-09-22
43. Wheeler Barite Mine

    Surface metal/non-metal · Wheeler Milling & Mining · MSHA ID 2401783
    Abandoned 1985-07-12

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

• Madison County 3,766
• Silver Bow County 2,397
• Jefferson County 1,973
• Lewis and Clark County 1,862
• Broadwater County 1,418
• Beaverhead County 1,378
• Carbon County 769
• Powell County 741
• Cascade County 708
• Deer Lodge County 688
• Fergus County 550
• Meagher County 440

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.