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MSHA mine register by county

Mines in Sierra County, New Mexico

Sierra County, New Mexico has 71 mines on MSHA's register: 2 active, 1 intermittent, 68 abandoned. 1 miner has died and 92 accidents have been reported at these mines between 1983 and 2026. Inspectors have issued 444 citations.

Every mine MSHA has registered in Sierra 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 Sierra County →

Mines on register
71
Active
2
Fatalities on record
1
Citations issued
444
17 underground · 50 surface · 4 facilities 0 coal · 71 metal and non-metal 1 intermittent 68 abandoned 92 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.
Sierra County, New Mexico · Population 11,511
2.0%
Mining share of county employment
$37,840
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
St. Cloud Mining Co. 10 1 1
Stear Mining Company 3 0 0
Bartoo Sand & Gravel Inc 2 1 0
Coyote Cliff LLC 2 0 0
Fulton Associates 2 0 0
Humphrey Sand, Gravel & Redi Mix, Inc. 2 0 0
A J Gilbert Construction Company 1 0 0
Anglo-Asian Minerals Ltd 1 0 0
Aragon Recovery Systems 1 0 0
ASAP Excavation LLC 1 0 0
Mines in Sierra County71 on register
  1. St Cloud Surface
    Surface metal/non-metal · St Cloud Mining Company · MSHA ID 2901960
    Active
  2. BARTOO PORTABLE SCREEN #1
    Surface metal/non-metal · Bartoo Sand & Gravel Inc · MSHA ID 2902209
    Active
  3. St Cloud
    Underground metal/non-metal · St Cloud Mining Company · MSHA ID 2901869
    Abandoned
  4. St Cloud Underground
    Underground metal/non-metal · St Cloud Mining Company · MSHA ID 2900944
    Abandoned
  5. Ladder #1 Golden Gulch Mining Company
    Surface metal/non-metal · Dynapac Inc - Golden Gulch Inc · MSHA ID 2901931
    Abandoned
  6. ST CLOUD MILL
    Facility metal/non-metal · St Cloud Mining Company · MSHA ID 2901919
    Abandoned
  7. CUCHILLO PIT
    Surface metal/non-metal · Bartoo Sand & Gravel Inc · MSHA ID 2901392
    Abandoned
  8. Mountain States Crusher 1830
    Surface metal/non-metal · Mountain States Constructors Inc · MSHA ID 2902274
    Abandoned
  9. U S Treasury Mine
    Underground metal/non-metal · St Cloud Mining Company · MSHA ID 2901920
    Abandoned
  10. Farm Pit
    Surface metal/non-metal · SBE Inc · MSHA ID 2902346
    Intermittent
  11. Chance
    Underground metal/non-metal · Hydro Resource · MSHA ID 2901770
    Abandoned
  12. Portable Crusher
    Surface metal/non-metal · St Cloud Mining Company · MSHA ID 2902139
    Abandoned
  13. Portable #4
    Surface metal/non-metal · H & H Brosious LLC · MSHA ID 2902400
    Abandoned
  14. Cuchillo Creek Mine
    Surface metal/non-metal · Humphrey Sand, Gravel & Redi Mix, Inc. · MSHA ID 2902241
    Abandoned
  15. Rattlesnake
    Underground metal/non-metal · Sierra Corp · MSHA ID 2901958
    Abandoned
  16. Screening Plant
    Surface metal/non-metal · Bill Hopkins · MSHA ID 2902217
    Abandoned
  17. Mapo Canyon
    Surface metal/non-metal · Turtleback Mountain Partners, LLC · MSHA ID 2902302
    Abandoned
  18. Spaceport 1
    Surface metal/non-metal · CMC Construction, Inc. · MSHA ID 2902404
    Abandoned
  19. Garfield Quarry
    Surface metal/non-metal · St. Cloud Mining Co. · MSHA ID 2902244
    Abandoned
  20. MUD MOUNTAIN QUARRY
    Surface metal/non-metal · Sandy Jones Construction · MSHA ID 2902211
    Abandoned
  21. J.A. Gamboa Materials
    Surface metal/non-metal · J.A. Gamboa Materials · MSHA ID 2902350
    Abandoned
  22. Portable Crusher #1
    Surface metal/non-metal · ASAP Excavation LLC · MSHA ID 2902363
    Abandoned
  23. Aragon Hill Mine
    Surface metal/non-metal · Rainbow Mines Ltd · MSHA ID 2901817
    Abandoned
  24. Aragon Pit
    Surface metal/non-metal · Aragon Recovery Systems · MSHA ID 2901670
    Abandoned
  25. Arrowhead Placers
    Surface metal/non-metal · Stear Mining Company · MSHA ID 2901930
    Abandoned
  26. B & K Mill
    Facility metal/non-metal · B & K Mining Corp · MSHA ID 2901784
    Abandoned
  27. Bigelow
    Underground metal/non-metal · Copper Hills Company · MSHA ID 2901832
    Abandoned
  28. Black Colt
    Underground metal/non-metal · Capitan Resources Inc · MSHA ID 2901769
    Abandoned
  29. Blackhawk Mine
    Underground metal/non-metal · Stear Mining Company · MSHA ID 2901839
    Abandoned
  30. Bullion Mines
    Surface metal/non-metal · North Sierra Mining Company · MSHA ID 2901262
    Abandoned
  31. Cmc Research & Development
    Surface metal/non-metal · Camilto Management Company · MSHA ID 2901884
    Abandoned
  32. Copper Flat
    Surface metal/non-metal · Copper Flat Partnership · MSHA ID 2901520
    Abandoned
  33. Coyote Cliff #1
    Surface metal/non-metal · Coyote Cliff LLC · MSHA ID 2902299
    Abandoned
  34. Coyote Cliff #2
    Surface metal/non-metal · Coyote Cliff LLC · MSHA ID 2902298
    Abandoned
  35. Cuchillo Pit
    Surface metal/non-metal · Loomis Construction Company Inc · MSHA ID 2901782
    Abandoned
  36. Delores Placer
    Surface metal/non-metal · James F Mc Cants · MSHA ID 2901263
    Abandoned
  37. Doolittle Pit
    Surface metal/non-metal · Jackson'S Earth Moving · MSHA ID 2902044
    Abandoned
  38. Dutch Gulch
    Surface metal/non-metal · Dutch Gulch Company · MSHA ID 2901698
    Abandoned
  39. Franklin No 1
    Surface metal/non-metal · Austin Mining Co Inc · MSHA ID 2901532
    Abandoned
  40. Gardner Pit
    Surface metal/non-metal · A J Gilbert Construction Company · MSHA ID 2901842
    Abandoned
  41. Gold Fever #5
    Surface metal/non-metal · Davis Mining · MSHA ID 2902121
    Abandoned
  42. Goldco
    Surface metal/non-metal · Goldco · MSHA ID 2902013
    Abandoned
  43. Granite Peak Mine
    Underground metal/non-metal · Drolte Mining Company · MSHA ID 2901531
    Abandoned
  44. Grubstake Mining & Exploration Incorpora
    Surface metal/non-metal · Grubstake Mining & Exploration Inc · MSHA ID 2902077
    Abandoned
  45. Henry Blue Moon Mine
    Surface metal/non-metal · Grande River Mines Inc · MSHA ID 2902082
    Abandoned
  46. Hermosa Project
    Underground metal/non-metal · Triple S Mining Company Inc · MSHA ID 2901866
    Abandoned
  47. HUMPHREY SAND GRAVEL & REDI MIX
    Surface metal/non-metal · Humphrey Sand Gravel & Redi Mix · MSHA ID 2901007
    Abandoned
  48. Ivanhoe
    Underground metal/non-metal · Ivanhoe Emporia Mines · MSHA ID 2901937
    Abandoned
  49. Ivanhoe-Emporia
    Underground metal/non-metal · St Cloud Mining Company · MSHA ID 2901938
    Abandoned
  50. Ladder One Mill
    Facility metal/non-metal · Jenny Mining Inc · MSHA ID 2901956
    Abandoned
  51. Little Granite Mine
    Underground metal/non-metal · Anglo-Asian Minerals Ltd · MSHA ID 2901844
    Abandoned
  52. Lost Arrowhead
    Surface metal/non-metal · David L Mc Cravey Company · MSHA ID 2901421
    Abandoned
  53. Margery Mine
    Underground metal/non-metal · Trans-World Metals Inc · MSHA ID 2901777
    Abandoned
  54. Oro Plata Mill
    Facility metal/non-metal · Stear Mining Company · MSHA ID 2901885
    Abandoned
  55. Poco A Poco
    Surface metal/non-metal · Embree H Hale Jr · MSHA ID 2901855
    Abandoned
  56. Portable Crusher
    Surface metal/non-metal · Peter Kiewit Sons' Company · MSHA ID 2901827
    Abandoned
  57. PORTABLE SCREEN PLT
    Surface metal/non-metal · E B Pollister · MSHA ID 2902079
    Abandoned
  58. Prospect N Mine
    Underground metal/non-metal · Picom Corp Ltd · MSHA ID 2901904
    Abandoned
  59. Riprap Machine (Plant)
    Surface metal/non-metal · St Cloud Mining Company · MSHA ID 2902384
    Abandoned
  60. S & S Mining Company
    Surface metal/non-metal · S & S Mining Company · MSHA ID 2901905
    Abandoned
  61. SCREENING PLANT
    Surface metal/non-metal · Hopkins Gravel · MSHA ID 2902214
    Abandoned
  62. Shandon Placer Mine
    Surface metal/non-metal · Nuclear Power Ltd · MSHA ID 2901799
    Abandoned
  63. Sherman Mine And Plant
    Surface metal/non-metal · W N Ackerman · MSHA ID 2901569
    Abandoned
  64. Silver Monument
    Underground metal/non-metal · Shamrock Mining Resouces · MSHA ID 2901773
    Abandoned
  65. Stone House Zeolite Mine
    Surface metal/non-metal · St Cloud Mining Company · MSHA ID 2902061
    Abandoned
  66. The Bonanza Mine
    Underground metal/non-metal · Gold Ventures Inc · MSHA ID 2901988
    Abandoned
  67. U S Treasury
    Surface metal/non-metal · Fulton Associates · MSHA ID 2901264
    Abandoned
  68. Weber
    Surface metal/non-metal · Fulton Associates · MSHA ID 2901011
    Abandoned
  69. Wicks Gold Mine Ltd
    Surface metal/non-metal · Wicks Gold Mine Ltd · MSHA ID 2901947
    Abandoned
  70. William Harding Mines
    Surface metal/non-metal · William Harding Mining Company · MSHA ID 2901381
    Abandoned
  71. Yaple Creek Pit
    Surface metal/non-metal · Yaple Creek Sand & Gravel · MSHA ID 2900425
    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.