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MSHA mine register by county

Mines in Rio Blanco County, Colorado

Rio Blanco County, Colorado has 51 mines on MSHA's register: 2 active, 2 intermittent, 47 abandoned. 5 are coal mines and 46 metal or non-metal. 4 miners have died and 879 accidents have been reported at these mines between 1983 and 2026. Inspectors have issued 4,806 citations.

Every mine MSHA has registered in Rio Blanco 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 Rio Blanco County →

Mines on register
51
Active
2
Fatalities on record
4
Citations issued
4,806
16 underground · 35 surface · 0 facilities 5 coal · 46 metal and non-metal 2 intermittent 47 abandoned 879 reported accidents, 1983–2026
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.
Rio Blanco County, Colorado · Population 6,518
9.1%
Mining share of county employment
$72,620
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
Mountain Aggregate Construction Inc 4 0 0
Colorado Department Of Highways 3 0 0
Ace West Trucking 2 0 0
Northern Coal Company 2 0 0
Schmidt-Tiago Construction Company 2 0 0
WR AGGREGATES, LLC 2 0 0
Blue Mountain Energy Inc 1 1 4
Ams Inc Of Nevada 1 0 0
Aztec Ready-Mix Inc 1 0 0
Bailey Concrete Products 1 0 0
Mines in Rio Blanco County51 on register
  1. Deserado Mine
    Underground coal · Blue Mountain Energy Inc · MSHA ID 0503505
    Active
  2. WASH PLANT & PORTABLE SCREEN
    Surface metal/non-metal · Meeker Sand & Gravel Inc · MSHA ID 0504435
    Active
  3. RANGELY PIT
    Surface metal/non-metal · Ace West Trucking · MSHA ID 0504650
    Abandoned
  4. WR JAW CRUSHER
    Surface metal/non-metal · WR Aggregates · MSHA ID 0504578
    Abandoned
  5. White River Flagstone LLC
    Surface metal/non-metal · White River Flagstone LLC · MSHA ID 0504719
    Abandoned
  6. Tract C-A
    Surface metal/non-metal · Rio Blanco Oil Shale Company Inc · MSHA ID 0503131
    Abandoned
  7. Meeker Stone Company
    Surface metal/non-metal · Meeker Stone Company, LLC · MSHA ID 0505075
    Intermittent
  8. Urie Gravel Pit (Permit M-2009-038)
    Surface metal/non-metal · Shallenberger Energy LLC. · MSHA ID 0505012
    Intermittent
  9. Portable Wash Plant #2
    Surface metal/non-metal · Connell Resources Inc · MSHA ID 0504744
    Abandoned
  10. OWL Western Gravel & Disposal
    Surface metal/non-metal · Oilfield Water Logistics · MSHA ID 0504929
    Abandoned
  11. WR WASH PLANT
    Surface metal/non-metal · WR AGGREGATES, LLC · MSHA ID 0504967
    Abandoned
  12. Anvil Points Mine
    Underground metal/non-metal · U S Department Of Energy · MSHA ID 0502500
    Abandoned
  13. Crusher #1
    Surface metal/non-metal · Mountain Aggregate Construction Inc · MSHA ID 0503155
    Abandoned
  14. Kenney Pit
    Surface metal/non-metal · Palisade Construction Company · MSHA ID 0503833
    Abandoned
  15. RIO BLANCA COUNTY CRUSHER
    Surface metal/non-metal · Rio Blanco County Road & Bridge Department · MSHA ID 0503109
    Abandoned
  16. Collins Gulch Pit
    Surface metal/non-metal · Newpark Mats & Integrated Services · MSHA ID 0504933
    Abandoned
  17. Kenny Pit Portable 1
    Surface metal/non-metal · Ace West Trucking · MSHA ID 0504856
    Abandoned
  18. SCI-001
    Surface metal/non-metal · Scott Contracting, Inc. · MSHA ID 0505114
    Abandoned
  19. RENTED CRUSHER
    Surface metal/non-metal · Porta Crushers Inc · MSHA ID 0504722
    Abandoned
  20. Amick
    Surface metal/non-metal · Bailey Construction Company · MSHA ID 0503183
    Abandoned
  21. Berry Pit And Plant
    Surface metal/non-metal · Berry Bros Ready-Mix Inc · MSHA ID 0502728
    Abandoned
  22. Blm (E Of Rangely)
    Surface metal/non-metal · Colorado Department Of Highways · MSHA ID 0503371
    Abandoned
  23. Bloomfield Pit
    Surface metal/non-metal · Aztec Ready-Mix Inc · MSHA ID 0502930
    Abandoned
  24. Blue Mountain Coal
    Surface coal · Blue Mountain Coal Company · MSHA ID 0502499
    Abandoned
  25. Butterfly
    Underground metal/non-metal · J R J Mining Company · MSHA ID 0503563
    Abandoned
  26. C & H Pit
    Surface metal/non-metal · C & H Contracting Company · MSHA ID 0504440
    Abandoned
  27. C B Shale Oil Lease
    Underground metal/non-metal · Ralph M Parsons Company · MSHA ID 0503148
    Abandoned
  28. C-A Tract
    Underground metal/non-metal · Ams Inc Of Nevada · MSHA ID 0503180
    Abandoned
  29. C-B Tract Or C-B Shale Oil Tract
    Underground metal/non-metal · Gilbert Corp Of Delaware · MSHA ID 0503149
    Abandoned
  30. Crusher #2
    Surface metal/non-metal · Mountain Aggregate Construction Inc · MSHA ID 0504459
    Abandoned
  31. Crusher #3
    Surface metal/non-metal · Mountain Aggregate Construction Inc · MSHA ID 0504460
    Abandoned
  32. Dearman Pit
    Surface metal/non-metal · Nielsons Inc · MSHA ID 0503239
    Abandoned
  33. Federal Oil Shale Lease Tract Ca
    Underground metal/non-metal · Mine Shaft & Tunnel Corp · MSHA ID 0503280
    Abandoned
  34. Federal Oil Shale Lease-Tract C-A
    Underground metal/non-metal · Morrison-Knudsen Company Inc · MSHA ID 0503179
    Abandoned
  35. Federal Oil Shale Lease-Tract C-A
    Underground metal/non-metal · Industrial Company · MSHA ID 0503181
    Abandoned
  36. Hawthorne Mc Quaid Pit
    Surface metal/non-metal · Schmidt-Tiago Construction Company · MSHA ID 0503202
    Abandoned
  37. Midnight Mine
    Underground metal/non-metal · Midnight Mining Company · MSHA ID 0501754
    Abandoned
  38. MONUMENT ROCK
    Surface metal/non-metal · Monument Rock · MSHA ID 0504705
    Abandoned
  39. Northern Coal #1
    Underground coal · Northern Coal Company · MSHA ID 0503227
    Abandoned
  40. Portable Crusher #1
    Surface metal/non-metal · Collins Construction Inc · MSHA ID 0504892
    Abandoned
  41. Rienau #2
    Underground coal · Northern Coal Company · MSHA ID 0500285
    Abandoned and Sealed
  42. Rio Blanco Oil Shale C-A Tract
    Underground metal/non-metal · Ruscon Becon Associates · MSHA ID 0503281
    Abandoned
  43. Rio Blanco Oil Shale Ca Tract
    Underground metal/non-metal · Harrison Electrical Construction Inc · MSHA ID 0503279
    Abandoned
  44. Rio Grand County Pit
    Surface metal/non-metal · Colorado Department Of Highways · MSHA ID 0503444
    Abandoned
  45. U S B M No 1 Shaft
    Underground metal/non-metal · Multi Mineral Corp · MSHA ID 0503046
    Abandoned
  46. W J Oilfield Service
    Surface metal/non-metal · W J Oilfield Service · MSHA ID 0504433
    Abandoned
  47. Wagner Pit
    Surface metal/non-metal · Schmidt-Tiago Construction Company · MSHA ID 0503201
    Abandoned
  48. Wash Plant #1
    Surface metal/non-metal · Mountain Aggregate Construction Inc · MSHA ID 0504458
    Abandoned
  49. White River
    Underground coal · Staley Gordon Coal Company Inc · MSHA ID 0500286
    Abandoned and Sealed
  50. White River Aggregates
    Surface metal/non-metal · Bailey Concrete Products · MSHA ID 0503168
    Abandoned
  51. White River Aggregates
    Surface metal/non-metal · Colorado Department Of Highways · MSHA ID 0503372
    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.