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MSHA mine register by county

Mines in Cascade County, Montana

Cascade County, Montana has 60 mines on MSHA's register: 2 active, 9 intermittent, 49 abandoned. 16 accidents have been reported at these mines between 1983 and 2025. Inspectors have issued 652 citations.

Every mine MSHA has registered in Cascade County, working or not, with the accident, fatality and citation record each one carries on this site. Active mines are listed first, then the rest by the weight of their record.

Abandoned and historical mine features in Cascade County →

Mines on register
60
Active
2
Fatalities on record
0
Citations issued
652
4 underground · 55 surface · 1 facilities 0 coal · 60 metal and non-metal 9 intermittent 49 abandoned 16 reported accidents, 1983–2025
Local economic context
ⓘ County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Cascade County, Montana · Population 84,601
0.7%
Mining share of county employment
$66,203
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
On the map 
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MSHA-registered mine, any status

Mines plot only where MSHA holds a surveyed coordinate for the site; mines the agency locates to a town, county or state centroid are in the counts and the list above but not drawn. Click a point for the mine's status and record.

Operators with the most mines herecurrent operator of record
Operator Mines Active Fatalities
United Materials of Great Falls, Inc. 6 2 0
Mortensen Construction Company 4 0 0
Helena Sand & Gravel, Inc. 3 0 0
Shumaker Trucking & Excavating Contractors Inc 3 0 0
Thompson Excavating, Inc. 3 0 0
Hilde Construction Company Inc 2 0 0
Lewis Construction Company 2 0 0
Sletten Construction Company 2 0 0
United Materials Of Great Falls Inc 2 0 0
Westgate Mining & Construction Inc 2 0 0
Mines in Cascade County60 on register
  1. PORTABLE CRUSHER
    Surface metal/non-metal · United Materials Of Great Falls Inc · MSHA ID 2401007
    Active
  2. United Materials/Conc. Agg. Wash
    Surface metal/non-metal · United Materials of Great Falls Inc. · MSHA ID 2402303
    Active
  3. Metso HP 200 Cone Plant Gravel Crusher
    Surface metal/non-metal · Cascade County Road & Bridge · MSHA ID 2402100
    Intermittent
  4. STE Crushing Spread #1
    Surface metal/non-metal · Shumaker Trucking & Excavating Contractors Inc · MSHA ID 2401915
    Intermittent
  5. SunRiver
    Surface metal/non-metal · Helena Sand & Gravel, Inc. · MSHA ID 2402214
    Intermittent
  6. Matthews Mine Pit
    Surface metal/non-metal · Geranios Enterprises Inc · MSHA ID 2402473
    Intermittent
  7. VOLK
    Surface metal/non-metal · Volk Sand & Gravel · MSHA ID 2402073
    Abandoned
  8. STE Crushing Spread #2
    Surface metal/non-metal · Shumaker Trucking & Excavating Contractors Inc · MSHA ID 2402375
    Intermittent
  9. Sierra Rock & Dirt Inc
    Surface metal/non-metal · Sierra Rock & Dirt, Inc. · MSHA ID 2402115
    Abandoned
  10. Thompson Pit
    Surface metal/non-metal · Thompson Excavating, Inc · MSHA ID 2401843
    Abandoned
  11. Florence Queen
    Underground metal/non-metal · Hecla Mining Company · MSHA ID 2401710
    Abandoned
  12. Neihart (Star) Mill
    Facility metal/non-metal · Westgate Mining & Construction Inc · MSHA ID 2401533
    Abandoned
  13. OPEN BUCKLE PIT
    Surface metal/non-metal · Thompson Excavating · MSHA ID 2402045
    Abandoned
  14. Montana Sand and Gravel
    Surface metal/non-metal · United Materials of Great Falls, Inc. · MSHA ID 2402741
    Intermittent
  15. FLOOD PIT (WASHING PLANT)
    Surface metal/non-metal · United Materials Of Great Falls Inc · MSHA ID 2402164
    Abandoned
  16. MONTANA SAND & GRAVEL PORTABLE #
    Surface metal/non-metal · United Materials Of Great Falls Inc · MSHA ID 2401977
    Abandoned
  17. Holman Pit
    Surface metal/non-metal · Helena Sand & Gravel, Inc. · MSHA ID 2402744
    Intermittent
  18. Hill Pit
    Surface metal/non-metal · Travis Johnson Ent. Inc. · MSHA ID 2402589
    Abandoned
  19. SAVOY QUARRY
    Surface metal/non-metal · Walter Savoy · MSHA ID 2401339
    Abandoned
  20. 63-8190
    Surface metal/non-metal · Montana Department Of Transportation · MSHA ID 2402037
    Abandoned
  21. Atlas Group, Inc.
    Surface metal/non-metal · Atlas Group, Inc. · MSHA ID 2402735
    Abandoned
  22. Big Bend Ranch
    Surface metal/non-metal · Thompson Excavating, Inc. · MSHA ID 2402294
    Abandoned
  23. Bonser Construction
    Surface metal/non-metal · Bonser Contruction · MSHA ID 2402368
    Abandoned
  24. Bowman Ranch Pit
    Surface metal/non-metal · Whiskey Bent, Inc. · MSHA ID 2402810
    Abandoned
  25. Boyles Brothers Drill Site
    Surface metal/non-metal · Boyles Brothers · MSHA ID 2401391
    Abandoned
  26. Cascade Quarry
    Surface metal/non-metal · Mortensen Construction Company · MSHA ID 2401536
    Abandoned
  27. Connors Drill Site
    Surface metal/non-metal · Connors Drilling Inc · MSHA ID 2401392
    Abandoned
  28. Eden Ridge Pit
    Surface metal/non-metal · Pioneer Ambitions, LLC DBA Pioneer Sand & Gravel · MSHA ID 2402694
    Abandoned
  29. Flood Pit
    Surface metal/non-metal · Black Eagle Paving Inc · MSHA ID 2401409
    Abandoned
  30. Griffen Site
    Surface metal/non-metal · Helena Sand & Gravel, Inc. · MSHA ID 2402781
    Intermittent
  31. Hilde Portable Crusher #1
    Surface metal/non-metal · Hilde Construction Company Inc · MSHA ID 2401421
    Abandoned
  32. Hilde Wash Plant
    Surface metal/non-metal · Hilde Construction Company Inc · MSHA ID 2401503
    Abandoned
  33. Hoover Creek Quarry
    Surface metal/non-metal · Montana Highway Department · MSHA ID 2401404
    Abandoned
  34. Hutterites Cascade Colony Quarry
    Surface metal/non-metal · L A Construction Inc · MSHA ID 2401976
    Abandoned
  35. Johnson Sand & Gravel Pit
    Surface metal/non-metal · United Materials Of Great Falls Inc · MSHA ID 2400480
    Abandoned
  36. Kraus Pit
    Surface metal/non-metal · Kraus Construction Inc · MSHA ID 2401389
    Abandoned
  37. Lewis Portable Crusher
    Surface metal/non-metal · Lewis Construction Company · MSHA ID 2401876
    Abandoned
  38. MC IVER
    Surface metal/non-metal · Great Falls Sand & Gravel · MSHA ID 2402046
    Abandoned
  39. Mcintyre Portable Crusher No 1
    Surface metal/non-metal · Mc Intyre Construction Company · MSHA ID 2401405
    Abandoned
  40. Monarch Stone Quarry
    Surface metal/non-metal · Forzley Sales Company · MSHA ID 2400810
    Abandoned
  41. Mortensen Portable Crusher
    Surface metal/non-metal · Mortensen Construction Company · MSHA ID 2400436
    Abandoned
  42. Mortensen Portable Crusher
    Surface metal/non-metal · Mortensen Construction Company · MSHA ID 2401398
    Abandoned
  43. Mortensen Portable Crusher 2
    Surface metal/non-metal · Mortensen Construction Company · MSHA ID 2401403
    Abandoned
  44. Newman Pit
    Surface metal/non-metal · Horner Construction Company · MSHA ID 2401388
    Abandoned
  45. Plant #1
    Surface metal/non-metal · Stevens Custom Crushing & Gravel, LLC · MSHA ID 2402825
    Intermittent
  46. Ponderosa
    Underground metal/non-metal · Medco Inc · MSHA ID 2401694
    Abandoned
  47. Ponderosa Mines
    Underground metal/non-metal · Med-Pro · MSHA ID 2400274
    Abandoned
  48. Portable Crusher #1
    Surface metal/non-metal · Confederated Contractors Inc · MSHA ID 2401781
    Abandoned
  49. Portable Crusher #1
    Surface metal/non-metal · United Materials Of Great Falls Inc · MSHA ID 2401796
    Abandoned
  50. Read Challenger MDL #22R176
    Surface metal/non-metal · Shumaker Trucking & Excavating Contractors Inc · MSHA ID 2402374
    Abandoned
  51. Screen Plant #2
    Surface metal/non-metal · United Materials Of Great Falls Inc · MSHA ID 2402055
    Abandoned
  52. Sheryl Ann Incorporated
    Surface metal/non-metal · Sheryl Ann Incorporated · MSHA ID 2402701
    Abandoned
  53. Sletten Crushing
    Surface metal/non-metal · Sletten Construction Company · MSHA ID 2401759
    Abandoned
  54. Sletten Pug Mill
    Surface metal/non-metal · Sletten Construction Company · MSHA ID 2401979
    Abandoned
  55. STANISN PIT
    Surface metal/non-metal · Dickman Excavation · MSHA ID 2401760
    Abandoned
  56. Star Mine
    Underground metal/non-metal · Westgate Mining & Construction Inc · MSHA ID 2400748
    Abandoned
  57. Vaughn Pit
    Surface metal/non-metal · Lewis Construction Company · MSHA ID 2400471
    Abandoned
  58. VIC'S PORTABLE CRUSHER
    Surface metal/non-metal · Vic Tindall Construction · MSHA ID 2401814
    Abandoned
  59. Zook #1
    Surface metal/non-metal · Zook Brothers Construction Company · MSHA ID 2401429
    Abandoned
  60. Zook #2
    Surface metal/non-metal · Zook Brothers Construction Company · MSHA ID 2401430
    Abandoned

Status, type and operator are as reported to MSHA. Fatality and accident counts are MSHA's reportable accident records for the mine; citations are inspector-issued violations on record. Each mine's own page carries the full detail.

Other counties in MontanaAll counties →
How to read these numbers

The register is MSHA's Mine Data Retrieval System: every operation ever assigned a mine ID, including ones abandoned decades ago, so the count is a history of mining in the county, not a count of working mines. A mine's county is the one its operator reported to MSHA. Fatality and accident counts start with MSHA's reportable-accident records (1983 onward); citation counts are inspector-issued violations on record. We are an independent research tool, not MSHA.