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MSHA mine register by county

Mines in San Miguel County, Colorado

San Miguel County, Colorado has 66 mines on MSHA's register: 1 active, 1 intermittent, 62 abandoned. 1 are coal mines and 65 metal or non-metal. 2 miners have died and 45 accidents have been reported at these mines between 1983 and 2024. Inspectors have issued 292 citations.

Every mine MSHA has registered in San Miguel 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 San Miguel County →

Mines on register
66
Active
1
Fatalities on record
2
Citations issued
292
51 underground · 15 surface · 0 facilities 1 coal · 65 metal and non-metal 1 intermittent 62 abandoned 45 reported accidents, 1983–2024
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.
San Miguel County, Colorado · Population 8,026
0.0%
Mining share of county employment
$80,117
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
Pinon Ridge Mining LLC 5 0 1
Ex-Terra Corp Ii 4 0 0
D C Bunker Mining Company 3 0 0
Minerals Recovery Corp 3 0 0
Union Carbide Corp 3 0 0
Anschutz Mining Corp 2 0 0
B-Mining Company 2 0 0
Skelton Inc 2 0 0
St Jude Mining Company 2 0 0
Umetco Minerals Corp 2 0 0
Mines in San Miguel County66 on register
  1. Telluride Airport Pit
    Surface metal/non-metal · Telluride Stone Company, Inc. · MSHA ID 0505059
    Active
  2. Sunday Mine
    Underground metal/non-metal · Pinon Ridge Mining LLC · MSHA ID 0501197
    Temporarily Idled
  3. Portable Crusher
    Surface metal/non-metal · Dolores County Road Department · MSHA ID 0503943
    Abandoned
  4. Steincrusher LLC
    Surface metal/non-metal · Steincrusher LLC · MSHA ID 0504546
    Intermittent
  5. Deremo
    Underground metal/non-metal · Umetco Minerals Corp · MSHA ID 0501786
    Abandoned
  6. EL-JAY
    Surface metal/non-metal · Skelton Inc · MSHA ID 0503985
    Abandoned
  7. Topaz
    Underground metal/non-metal · Pinon Ridge Mining LLC · MSHA ID 0503613
    Abandoned
  8. West Sunday
    Underground metal/non-metal · Pinon Ridge Mining LLC · MSHA ID 0503780
    Abandoned
  9. St Jude Mine
    Underground metal/non-metal · Pinon Ridge Mining LLC · MSHA ID 0503153
    Abandoned
  10. Csr-10
    Underground metal/non-metal · Energy Fuels Nuclear Inc · MSHA ID 0503415
    Abandoned
  11. Hankins Stone Quarry #1
    Surface metal/non-metal · TJH Stone Ltd · MSHA ID 0504707
    Temporarily Idled
  12. PORTABLE WASH PLANT
    Surface metal/non-metal · Telluride Gravel Inc · MSHA ID 0504497
    Abandoned
  13. C-SR-11
    Underground metal/non-metal · Highbury Resources Inc. · MSHA ID 0504829
    Abandoned
  14. Alice No 2 Lc-Sr-Is
    Underground metal/non-metal · Edward E Miller · MSHA ID 0503033
    Abandoned
  15. Alta Project
    Surface metal/non-metal · Socorro Mining Inc · MSHA ID 0504409
    Abandoned
  16. Ann Lc-Sr-161
    Underground metal/non-metal · St Jude Mining Company · MSHA ID 0502980
    Abandoned
  17. Breezy
    Underground metal/non-metal · Urralburu Mining Company · MSHA ID 0503211
    Abandoned
  18. Burro Tunnel Or Burro
    Underground metal/non-metal · Umetco Minerals Corp · MSHA ID 0501819
    Abandoned
  19. Bush Canyon Mine
    Underground metal/non-metal · Larry Shumway · MSHA ID 0502811
    Abandoned
  20. C-Sr-10 Sublease
    Underground metal/non-metal · Shumway Mining Co · MSHA ID 0503433
    Abandoned
  21. C-Sr-12
    Underground metal/non-metal · Anschutz Mining Corp · MSHA ID 0502981
    Abandoned
  22. C-Sr-13
    Underground metal/non-metal · D C Bunker Mining Company · MSHA ID 0502786
    Abandoned
  23. C-SR-13a
    Underground metal/non-metal · Cotter Corp · MSHA ID 0502771
    Abandoned
  24. C-Sr-15-A
    Underground metal/non-metal · Union Carbide Corp · MSHA ID 0503418
    Abandoned
  25. C-Sr-16a
    Surface metal/non-metal · Trio Industries Inc · MSHA ID 0502740
    Abandoned
  26. Carnation
    Underground metal/non-metal · Pinon Ridge Mining LLC · MSHA ID 0501106
    Abandoned
  27. Civit Cat
    Underground metal/non-metal · Eagle Peak Mining Company · MSHA ID 0503105
    Abandoned
  28. Cougar C-Sr-15
    Underground metal/non-metal · Farmer & Sickels Mining · MSHA ID 0503464
    Abandoned
  29. Dalrymple Placer Mine
    Surface metal/non-metal · Dalrymple Placer Mining · MSHA ID 0503717
    Abandoned
  30. Deep Creek Placer
    Underground metal/non-metal · B-Mining Company · MSHA ID 0504176
    Abandoned
  31. Dolores River
    Underground metal/non-metal · Minerals Recovery Corp · MSHA ID 0501716
    Abandoned
  32. Dorie Mine
    Surface metal/non-metal · San Miguel Gold Mines Inc · MSHA ID 0504012
    Abandoned
  33. Early Morning
    Surface metal/non-metal · D C Bunker Mining Company · MSHA ID 0502663
    Abandoned
  34. Ellison Mine
    Underground metal/non-metal · B-Mining Company · MSHA ID 0503241
    Abandoned
  35. Fox Mine
    Underground metal/non-metal · Cole & Co Mining · MSHA ID 0502800
    Abandoned
  36. Full Moon No 2
    Underground metal/non-metal · Union Carbide Corp · MSHA ID 0502741
    Abandoned
  37. Guthrie
    Surface metal/non-metal · Geyser Mining Company · MSHA ID 0500987
    Abandoned
  38. Helen M S
    Underground metal/non-metal · Ex-Terra Corp Ii · MSHA ID 0504089
    Abandoned
  39. Horseshoe Mine
    Underground metal/non-metal · Minerals Recovery Corp · MSHA ID 0503141
    Abandoned
  40. Ike #1
    Underground metal/non-metal · Anschutz Mining Corp · MSHA ID 0502789
    Abandoned
  41. Iron Crown
    Surface metal/non-metal · Spencer & Schooley · MSHA ID 0502609
    Abandoned
  42. Letty Jones Mine
    Underground metal/non-metal · Dravo Corp · MSHA ID 0502671
    Abandoned
  43. Mad Jack No 1
    Underground coal · Tri-Island Land & Cattle Company Inc · MSHA ID 0503497
    Abandoned and Sealed
  44. Nola Z C-Sr-16
    Underground metal/non-metal · Starks Mining · MSHA ID 0503084
    Abandoned
  45. Ophir 27
    Underground metal/non-metal · Ex-Terra Corp Ii · MSHA ID 0504088
    Abandoned
  46. Oyla Mine
    Underground metal/non-metal · Sage & Sage Mining Company · MSHA ID 0503194
    Abandoned
  47. Parrot Railroad Tunnel
    Underground metal/non-metal · Brooks Minerals Inc · MSHA ID 0503056
    Abandoned
  48. Patrick D C-Sr-16
    Underground metal/non-metal · St Jude Mining Company · MSHA ID 0503128
    Abandoned
  49. Paystreak
    Underground metal/non-metal · Union Carbide Corp · MSHA ID 0502397
    Abandoned
  50. Philura
    Underground metal/non-metal · Kelmine Corp · MSHA ID 0503219
    Abandoned
  51. Pond Mine
    Underground metal/non-metal · Switzler Mining Co · MSHA ID 0503086
    Abandoned
  52. Radium #6
    Underground metal/non-metal · Pierce Mining · MSHA ID 0503090
    Abandoned
  53. San Miguel County Placer
    Surface metal/non-metal · Skelton Inc · MSHA ID 0503108
    Abandoned
  54. Sawpit
    Underground metal/non-metal · Intermountain Mining Ltd · MSHA ID 0503775
    Abandoned
  55. Sego Lily Lou
    Underground metal/non-metal · Roedel Mining · MSHA ID 0501098
    Abandoned
  56. Shamrock No 1 2 3
    Underground metal/non-metal · Agatha Patricia Dalpez · MSHA ID 0502218
    Abandoned
  57. Slide Group
    Underground metal/non-metal · Randy Belisle · MSHA ID 0500531
    Abandoned
  58. Spars
    Underground metal/non-metal · Ex-Terra Corp Ii · MSHA ID 0504091
    Abandoned
  59. Strawberry Roan Mine
    Underground metal/non-metal · G & S Mining · MSHA ID 0501281
    Abandoned
  60. Summit-Black Jack
    Underground metal/non-metal · Jim C Butt · MSHA ID 0503546
    Abandoned
  61. Sun Cup
    Underground metal/non-metal · Minerals Recovery Corp · MSHA ID 0501679
    Abandoned
  62. Uintah
    Underground metal/non-metal · W D Tripp Mining Company · MSHA ID 0503085
    Abandoned
  63. Wilmarth
    Surface metal/non-metal · D C Bunker Mining Company · MSHA ID 0502709
    Abandoned
  64. Windswept #1
    Underground metal/non-metal · Taminco Inc · MSHA ID 0503132
    Abandoned
  65. Woodie
    Underground metal/non-metal · Ex-Terra Corp Ii · MSHA ID 0504090
    Abandoned
  66. Zamboanga Mine
    Underground metal/non-metal · Zamboanga Mining · MSHA ID 0503871
    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 ColoradoAll 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.