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MSHA mine register by county

Mines in Placer County, California

Placer County, California has 53 mines on MSHA's register: 5 active, 48 abandoned. 1 miner has died and 181 accidents have been reported at these mines between 1983 and 2025. Inspectors have issued 880 citations.

Every mine MSHA has registered in Placer 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 Placer County →

Mines on register
53
Active
5
Fatalities on record
1
Citations issued
880
24 underground · 27 surface · 2 facilities 0 coal · 53 metal and non-metal 48 abandoned 181 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.
Placer County, California · Population 412,435
0.1%
Mining share of county employment
$114,678
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
American Jade & Gold Company 2 0 0
Gladding McBean 2 1 0
Henry W Magorian 2 0 0
CEMEX Construction Materials Pacific, LLC 1 0 1
American Hill Mine Ltd 1 0 0
American Olean Tile Company Inc 1 0 0
Asphalt/Concrete Recycling 1 0 0
Big Gun Mining 1 0 0
Boyle Exploration & Development 1 0 0
C D Livingston 1 0 0
Mines in Placer County53 on register
  1. Bear River Materials
    Surface metal/non-metal · Green Vista Holdings · MSHA ID 0401819
    Active
  2. GMcB Lincoln Pits & Mill
    Surface metal/non-metal · Gladding McBean · MSHA ID 0400491
    Active
  3. Capital Rock LLC
    Surface metal/non-metal · Capital Rock LLC · MSHA ID 0405971
    Active
  4. Robinson Gravel Pit / Ophir Rd. Quarry
    Surface metal/non-metal · Don Robinson Sand & Gravel, Inc. · MSHA ID 0402279
    Active
  5. Big Seam mine
    Underground metal/non-metal · Eagle's Nest Mining LLC · MSHA ID 0404468
    Active
  6. Patterson Plant
    Surface metal/non-metal · CEMEX Construction Materials Pacific, LLC · MSHA ID 0401906
    Abandoned
  7. Collet-Rocklin Aggregates
    Surface metal/non-metal · R C Collet Inc · MSHA ID 0404503
    Abandoned
  8. BIG GUN MINING
    Surface metal/non-metal · Big Gun Mining · MSHA ID 0400297
    Abandoned
  9. GMcB Clay Products
    Surface metal/non-metal · Gladding McBean · MSHA ID 0400556
    Abandoned
  10. Phil Reome
    Surface metal/non-metal · Phil Reome, Inc. · MSHA ID 0405560
    Abandoned
  11. Swiftshore Mine
    Underground metal/non-metal · Provista Mining Co. · MSHA ID 0405559
    Abandoned
  12. WAYNBO DRIFT MINE WAYNE S. TUNNEL
    Surface metal/non-metal · WAYNE'S DRIFT MINE (TUNNEL) · MSHA ID 0405203
    Abandoned
  13. WILD CAT MINES
    Underground metal/non-metal · Greg & Mike Sykora · MSHA ID 0405379
    Abandoned
  14. American Bar Quartz
    Surface metal/non-metal · Till-Mcanally · MSHA ID 0404448
    Abandoned
  15. American Hill Mine
    Surface metal/non-metal · American Hill Mine Ltd · MSHA ID 0404447
    Abandoned
  16. ASPHALT/CONCRETE RECYCLING
    Facility metal/non-metal · Asphalt/Concrete Recycling · MSHA ID 0405359
    Abandoned
  17. C M D
    Underground metal/non-metal · Herman Axel · MSHA ID 0404808
    Abandoned
  18. Cmd Mine
    Underground metal/non-metal · Cmd Association · MSHA ID 0405232
    Abandoned
  19. Colfax Mine
    Surface metal/non-metal · Sterlling P Holloway Iii · MSHA ID 0403452
    Abandoned
  20. Colfax Quarry
    Surface metal/non-metal · American Olean Tile Company Inc · MSHA ID 0403716
    Abandoned
  21. DANDY QUARTZ MINE
    Underground metal/non-metal · Richard Slechta Jr · MSHA ID 0405375
    Abandoned
  22. Digmore Placer
    Underground metal/non-metal · C D Livingston · MSHA ID 0404700
    Abandoned
  23. Donna'S Stake
    Underground metal/non-metal · Steve Dwane Craig · MSHA ID 0404479
    Abandoned
  24. East Branch Mine
    Underground metal/non-metal · American Jade & Gold Company · MSHA ID 0404446
    Abandoned
  25. El Dorado
    Surface metal/non-metal · East-West Mining & Milling Inc · MSHA ID 0404428
    Abandoned
  26. EL DORADO MINE LAST CHANCE
    Underground metal/non-metal · Robert J Morey · MSHA ID 0405378
    Abandoned
  27. Gleason Diggings
    Surface metal/non-metal · Boyle Exploration & Development · MSHA ID 0404666
    Abandoned
  28. GOLD BUG MINE CAMC266545
    Underground metal/non-metal · Gordon H Gibbons · MSHA ID 0405393
    Abandoned
  29. GOLD KING MINE
    Underground metal/non-metal · Spanish Flat Mining Company Inc · MSHA ID 0405287
    Abandoned
  30. Gold Run Mine
    Underground metal/non-metal · Gates & Fox Company Inc · MSHA ID 0404438
    Abandoned
  31. Hazard
    Underground metal/non-metal · Point West Properties · MSHA ID 0402441
    Abandoned
  32. Hope & Wildcat
    Underground metal/non-metal · Richard R Sykora · MSHA ID 0404656
    Abandoned
  33. Indian Creek Phase A
    Surface metal/non-metal · Seneca Gold Mining Company · MSHA ID 0404463
    Abandoned
  34. Interbay Quarry
    Surface metal/non-metal · U S Forest Service · MSHA ID 0404047
    Abandoned
  35. Junction Bar
    Surface metal/non-metal · Century 21 Inc · MSHA ID 0404449
    Abandoned
  36. Lincoln Rock Company
    Surface metal/non-metal · Lincoln Rock Company Inc · MSHA ID 0404980
    Abandoned
  37. Lincoln Rock Quarry
    Surface metal/non-metal · James L Ferry & Son Inc · MSHA ID 0404267
    Abandoned
  38. Little Mad
    Underground metal/non-metal · American Jade & Gold Company · MSHA ID 0404806
    Abandoned
  39. Merz Mine
    Underground metal/non-metal · D & J Mining Company Inc · MSHA ID 0404453
    Abandoned
  40. Miles Pit And Mill
    Surface metal/non-metal · R J Miles Company · MSHA ID 0402067
    Abandoned
  41. Mountain Gate Gravel Quarry
    Surface metal/non-metal · Mountain Gate-Wacker Company · MSHA ID 0404253
    Abandoned
  42. North American Mine
    Surface metal/non-metal · Golconda Limited Partner · MSHA ID 0404442
    Abandoned
  43. Pacific Mine
    Surface metal/non-metal · Guntert & Zimmerman Construction Division Inc · MSHA ID 0404048
    Abandoned
  44. Pegasus Mine
    Surface metal/non-metal · Pegasus Mining Inc · MSHA ID 0404437
    Abandoned
  45. Red Star
    Underground metal/non-metal · Red Star Gold Mining Corp · MSHA ID 0404675
    Abandoned
  46. Sanderson Sand & Gravel Pit
    Surface metal/non-metal · Sanderson Aggregates · MSHA ID 0401796
    Abandoned
  47. Stewart Mine
    Underground metal/non-metal · Jval Inc · MSHA ID 0405077
    Abandoned
  48. Three Queens
    Underground metal/non-metal · Henry W Magorian · MSHA ID 0404478
    Abandoned
  49. THREE QUEENS MINE
    Underground metal/non-metal · Henry W Magorian · MSHA ID 0405380
    Abandoned
  50. Truro
    Underground metal/non-metal · Wendy Christine Mining Company · MSHA ID 0404400
    Abandoned
  51. UPPER DEMARIA MINE
    Underground metal/non-metal · Jessica Mining Company Llc · MSHA ID 0404991
    Abandoned
  52. Westside Quartz Mine
    Underground metal/non-metal · Westside Quartz Claim · MSHA ID 0404606
    Abandoned
  53. You Bet Mill
    Facility metal/non-metal · Pacific Silica Company · MSHA ID 0402733
    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.