Mining Incidents
Search Operators Mines Alerts Research Controllers Fatalgrams About
Countries
Peru Chile
English Español
States › California
MSHA mine register by county

Mines in Nevada County, California

Nevada County, California has 45 mines on MSHA's register: 3 active, 3 intermittent, 39 abandoned. 1 miner has died and 206 accidents have been reported at these mines between 1983 and 2026. Inspectors have issued 454 citations.

Every mine MSHA has registered in Nevada 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 Nevada County →

Mines on register
45
Active
3
Fatalities on record
1
Citations issued
454
16 underground · 27 surface · 2 facilities 0 coal · 45 metal and non-metal 3 intermittent 39 abandoned 206 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.
Nevada County, California · Population 102,452
0.1%
Mining share of county employment
$84,905
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
On the map 
Loading map…
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
Hansen Brothers Enterprises 4 2 0
Teichert Aggregates 3 0 0
Red Ledge Mining Company LLC 2 0 0
Ruby Gold, Inc. 1 1 1
California Natural Resources LP 1 0 0
Charles K Smith 1 0 0
Christman Mining Enterprises 1 0 0
Desert Gold Inc 1 0 0
Dewayne Davis 1 0 0
Double Eagle Exploration Corp 1 0 0
Mines in Nevada County45 on register
  1. RUBY MINE
    Underground metal/non-metal · Ruby Gold, Inc. · MSHA ID 0403108
    Active
  2. GREENHORN PIT & MILL
    Surface metal/non-metal · Hansen Brothers Enterprises · MSHA ID 0403138
    Active
  3. Ridge Rock Quarry
    Surface metal/non-metal · Hansen Bros. Enterprises · MSHA ID 0405178
    Active
  4. SAN JUAN RIDGE MINE
    Underground metal/non-metal · Siskon Gold Corp · MSHA ID 0405217
    Abandoned
  5. Martis Valley Plant
    Surface metal/non-metal · Teichert Aggregates · MSHA ID 0401679
    Intermittent
  6. R J MILES CO-SECRET TOWN PLANT
    Surface metal/non-metal · R J Miles Company · MSHA ID 0404262
    Abandoned
  7. Bear River Plant
    Surface metal/non-metal · Hansen Bros Enterprises · MSHA ID 0401797
    Abandoned
  8. Boca Quarry
    Surface metal/non-metal · Hillsdale Rock Company · MSHA ID 0404748
    Abandoned
  9. Truckee Quarry
    Surface metal/non-metal · Teichert Aggregates · MSHA ID 0404275
    Abandoned
  10. Red Ledge Mine
    Surface metal/non-metal · Red Ledge Mining Company LLC · MSHA ID 0405349
    Intermittent
  11. Boca Quarry
    Surface metal/non-metal · Teichert Aggregates · MSHA ID 0404708
    Intermittent
  12. Red Ledge Mining Co.
    Underground metal/non-metal · Red Ledge Mining Company · MSHA ID 0404393
    Abandoned
  13. Blue Lead Mine
    Underground metal/non-metal · Jasper Construction Company Inc · MSHA ID 0403859
    Abandoned
  14. KREIES' MINE
    Facility metal/non-metal · Harvey L Kreie · MSHA ID 0405202
    Abandoned
  15. French Corral Operation
    Surface metal/non-metal · Pantle Mining Corp · MSHA ID 0404301
    Abandoned
  16. NORTH STAR ROCK
    Surface metal/non-metal · Hansen Brothers Enterprises · MSHA ID 0404528
    Abandoned
  17. San Juan Ridge
    Surface metal/non-metal · Placer Service Corp · MSHA ID 0404417
    Abandoned
  18. Aetna
    Underground metal/non-metal · Mastermines Inc · MSHA ID 0404469
    Abandoned
  19. Alta Mine
    Underground metal/non-metal · Dewayne Davis · MSHA ID 0404711
    Abandoned
  20. Badger Diggings
    Surface metal/non-metal · Ne-Cal Mining Company Inc · MSHA ID 0404586
    Abandoned
  21. Bear River Plant
    Surface metal/non-metal · John E Northup Enterprises · MSHA ID 0404260
    Abandoned
  22. Blue Lead Gold Mine
    Surface metal/non-metal · Blue Lead Gold Mine, LLC · MSHA ID 0405956
    Abandoned
  23. Crystal Hill Mine
    Surface metal/non-metal · Fleetwood Mining · MSHA ID 0404300
    Abandoned
  24. Democrat Mine
    Surface metal/non-metal · Vinnell Corp · MSHA ID 0404268
    Abandoned
  25. Denson
    Surface metal/non-metal · Kenneth Denson · MSHA ID 0404521
    Abandoned
  26. Essannie Sand And Gravel
    Surface metal/non-metal · Murphy Ready Mix · MSHA ID 0404299
    Abandoned
  27. French Corral Mine
    Surface metal/non-metal · California Natural Resources LP · MSHA ID 0405046
    Abandoned
  28. German Bar Mine
    Underground metal/non-metal · Christman Mining Enterprises · MSHA ID 0404672
    Abandoned
  29. Gold Key
    Surface metal/non-metal · Gold Key Mining Inc · MSHA ID 0404864
    Abandoned
  30. Greenhorn
    Facility metal/non-metal · Washington Pacific Silica Company · MSHA ID 0403139
    Abandoned
  31. IDAHO MARYLAND MINE
    Underground metal/non-metal · Emperor Gold (Us) Corp · MSHA ID 0405288
    Abandoned
  32. Indiana Mine
    Underground metal/non-metal · John K Antonowitsch Owner · MSHA ID 0404236
    Abandoned
  33. Iowa Project
    Underground metal/non-metal · Odessa Mining Inc · MSHA ID 0404820
    Abandoned
  34. LONE WOLF
    Underground metal/non-metal · Charles K Smith · MSHA ID 0405344
    Abandoned
  35. Manzanita Mine
    Underground metal/non-metal · Manzanita 85 Ltd · MSHA ID 0404773
    Abandoned
  36. Meadow Lake Mine
    Underground metal/non-metal · Kelmine Corp · MSHA ID 0404889
    Abandoned
  37. N C Gravel
    Surface metal/non-metal · Desert Gold Inc · MSHA ID 0404809
    Abandoned
  38. North Columbia Aggregates
    Surface metal/non-metal · North Columbia Aggregates · MSHA ID 0404416
    Abandoned
  39. Nubbins Hope
    Surface metal/non-metal · Marshall Earth Resources Inc · MSHA ID 0404848
    Abandoned
  40. Octo Mine
    Surface metal/non-metal · Double Eagle Exploration Corp · MSHA ID 0404673
    Abandoned
  41. Oro Mine
    Underground metal/non-metal · Thomas Mining · MSHA ID 0404510
    Abandoned
  42. Shady Creek Rock Plant
    Surface metal/non-metal · Tom Maine Sand & Gravel · MSHA ID 0404271
    Abandoned
  43. Twin Sisters
    Underground metal/non-metal · Twin Sisters Mine · MSHA ID 0404591
    Abandoned
  44. Twin Sisters Mine
    Underground metal/non-metal · J5 AU LLC · MSHA ID 0405944
    Abandoned
  45. Upper Spanish Mine
    Surface metal/non-metal · Robinson Enterprises Inc · MSHA ID 0404269
    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 CaliforniaAll 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.