Mining Incidents
MSHA mine register by county

Mines in Rio Arriba County, New Mexico

Rio Arriba County, New Mexico has 33 mines on MSHA's register: 2 active, 4 intermittent, 27 abandoned. 1 are coal mines and 32 metal or non-metal. 147 accidents have been reported at these mines between 1983 and 2025. Inspectors have issued 1,232 citations.

Every mine MSHA has registered in Rio Arriba 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 Arriba County →

Mines on register
33
Active
2
Fatalities on record
0
Citations issued
1,232
1 underground · 30 surface · 2 facilities 1 coal · 32 metal and non-metal 4 intermittent 27 abandoned 147 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.
Rio Arriba County, New Mexico · Population 40,165
1.3%
Mining share of county employment
$53,901
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
Espanola Transit Mix, LLC 4 1 0
CR Minerals Company LLC 2 1 0
New Mexico State Highway Department 2 0 0
Russell Sand & Gravel Company Inc 2 0 0
Abiquiu Sand & Gravel Company 1 0 0
Apache Construction Company Inc 1 0 0
Arriba Concrete & Construction, Inc. 1 0 0
Bobby Garcia Trucking Inc 1 0 0
Brasier Bitcam LLC 1 0 0
Colorado Aggregate Company Inc 1 0 0
Mines in Rio Arriba County33 on register
  1. LOWDERMILK
    Surface metal/non-metal · Espanola Transit Mix, LLC · MSHA ID 2901712
    Active
  2. ROCKY MOUNTAIN MINE
    Surface metal/non-metal · Cr Minerals Company LLC · MSHA ID 2900189
    Active
  3. Velarde Mill
    Facility metal/non-metal · Oglebay Norton Specialty Mineral Incorporated · MSHA ID 2900751
    Abandoned
  4. San Juan Plant
    Facility metal/non-metal · CR Minerals Company LLC · MSHA ID 2900812
    Abandoned
  5. Crusher HW1
    Surface metal/non-metal · James Hamilton Construction Co. · MSHA ID 2902016
    Abandoned
  6. GM Pipe, LLC
    Surface metal/non-metal · GM Pipe, LLC · MSHA ID 2902331
    Intermittent
  7. Portable Screener #1
    Surface metal/non-metal · Red Hill Lava Products, Inc. · MSHA ID 2902158
    Abandoned
  8. COPAR MILL
    Surface metal/non-metal · Copar Pumice Company, Inc. · MSHA ID 2901129
    Abandoned
  9. Casados Pit
    Surface metal/non-metal · Russell Sand & Gravel Company Inc · MSHA ID 2902204
    Abandoned
  10. BRAZOS SAND & GRAVEL
    Surface metal/non-metal · Freeland Inc · MSHA ID 2902193
    Abandoned
  11. Ohkay Owingeh Pit
    Surface metal/non-metal · Leroy's Excavating, Inc. · MSHA ID 2902500
    Intermittent
  12. PORTABLE CRUSHER
    Surface metal/non-metal · Espanola Transit Mix Company · MSHA ID 2901990
    Abandoned
  13. Arriba Concrete
    Surface metal/non-metal · Arriba Concrete & Construction, Inc. · MSHA ID 2902394
    Intermittent
  14. Brazos Pit
    Surface metal/non-metal · Russell Sand & Gravel Co., Inc. · MSHA ID 2902486
    Intermittent
  15. Portable #3
    Surface metal/non-metal · H & H Brosious LLC · MSHA ID 2902373
    Abandoned
  16. Abiquiu Sand & Gravel Company
    Surface metal/non-metal · Abiquiu Sand & Gravel Company · MSHA ID 2902166
    Abandoned
  17. CRUSHER #1
    Surface metal/non-metal · Apache Construction Company Inc · MSHA ID 2902160
    Abandoned
  18. Rental Equipment
    Surface metal/non-metal · Brasier Bitcam LLC · MSHA ID 2902378
    Abandoned
  19. Screen Unit
    Surface metal/non-metal · Colorado Quarries Inc · MSHA ID 0505103
    Abandoned
  20. BOBBY GARCIA TRUCKING INC
    Surface metal/non-metal · Bobby Garcia Trucking Inc · MSHA ID 2902215
    Abandoned
  21. Velarde Pit
    Surface metal/non-metal · Coppola Mining, LLC · MSHA ID 2902417
    Abandoned
  22. Caranta #3 Ug
    Underground coal · Stanley Idzior · MSHA ID 2900091
    Abandoned
  23. Pajarito Pit
    Surface metal/non-metal · Espanola Transit Mix Company · MSHA ID 2900449
    Abandoned
  24. Pine Canyon Pit
    Surface metal/non-metal · Paisano Nodaway Enterprises Inc · MSHA ID 2901704
    Abandoned
  25. Pit No B-01294
    Surface metal/non-metal · New Mexico State Highway Department · MSHA ID 2901446
    Abandoned
  26. Portable Crusher
    Surface metal/non-metal · Ethco Enterprise Inc · MSHA ID 2901980
    Abandoned
  27. Portable Crushing Plant No 1
    Surface metal/non-metal · Southway Construction Company Inc · MSHA ID 2901751
    Abandoned
  28. PORTABLE SCREEN #1
    Surface metal/non-metal · Z-4 ENTERPRISES INC · MSHA ID 2902230
    Abandoned
  29. San Anton Mountain Pit
    Surface metal/non-metal · Colorado Aggregate Company Inc · MSHA ID 2901002
    Abandoned
  30. San Juan Pueblo Mine
    Surface metal/non-metal · Espanola Transit Mix Company · MSHA ID 2902011
    Abandoned
  31. Sebastian & Martin Pit
    Surface metal/non-metal · New Mexico State Highway Department · MSHA ID 2901396
    Abandoned
  32. TSAY S & G
    Surface metal/non-metal · Tsay Construction · MSHA ID 2902175
    Abandoned
  33. Velarde Pit
    Surface metal/non-metal · W W Construction Inc · MSHA ID 2901989
    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 New MexicoAll 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.