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MSHA mine register by county

Mines in Amador County, California

Amador County, California has 46 mines on MSHA's register: 3 active, 3 intermittent, 38 abandoned. 3 are coal mines and 43 metal or non-metal. 1 miner has died and 394 accidents have been reported at these mines between 1983 and 2025. Inspectors have issued 1,951 citations.

Every mine MSHA has registered in Amador 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 Amador County →

Mines on register
46
Active
3
Fatalities on record
1
Citations issued
1,951
9 underground · 33 surface · 4 facilities 3 coal · 43 metal and non-metal 3 intermittent 38 abandoned 394 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.
Amador County, California · Population 41,029
0.2%
Mining share of county employment
$81,526
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
Interpace Corp 3 0 0
Jackson Valley Energy Partners L P 3 0 0
Newman Minerals, LLC 2 0 0
Specialty Granules (Ione) LLC 2 1 0
US Mine Corporation 2 1 0
Hageman Mining 1 0 1
American Lignite Products Company 1 0 0
Anderson & Associates 1 0 0
Custom Crushing Industries Inc 1 0 0
Eland Construction, Inc. 1 0 0
Mines in Amador County46 on register
  1. USMC Ione Plant
    Surface metal/non-metal · US Mine Corp · MSHA ID 0401878
    Active
  2. Specialty Granules (Ione) LLC
    Surface metal/non-metal · Specialty Granules (Ione) LLC · MSHA ID 0405533
    Active
  3. Jackson Valley Quarry
    Surface metal/non-metal · George Reed Inc · MSHA ID 0403761
    Active
  4. Harry J Portal
    Underground metal/non-metal · Hageman Mining · MSHA ID 0405053
    Abandoned
  5. CALCINE 1-3 MILL
    Facility metal/non-metal · North American Refractories Company · MSHA ID 0402866
    Abandoned
  6. IONE PLANT
    Surface metal/non-metal · Hanson Aggregates West Inc · MSHA ID 0405036
    Abandoned
  7. Preparation Plant
    Facility metal/non-metal · American Lignite Products Company · MSHA ID 0400659
    Abandoned
  8. Plymouth Sand & Gravel
    Surface metal/non-metal · Plymouth Sand & Gravel · MSHA ID 0405163
    Intermittent
  9. Volcano Quarry
    Surface metal/non-metal · Oi Ione Sts Inc · MSHA ID 0401610
    Abandoned
  10. LINCOLN MINE PROJECT
    Underground metal/non-metal · Seduli Sutter Operations Corporation · MSHA ID 0405038
    NonProducing
  11. Preparation Plant
    Facility coal · Jackson Valley Energy Partners L P · MSHA ID 0405125
    Abandoned
  12. Portable #1 Big Plant
    Surface metal/non-metal · Custom Crushing Industries Inc · MSHA ID 0405495
    Intermittent
  13. Goose Hill Rock
    Surface metal/non-metal · Goose Hill Rock · MSHA ID 0405267
    Abandoned
  14. China Hill (Volcano) Quarry
    Surface metal/non-metal · Folsom Ready-Mix, Inc. · MSHA ID 0403227
    Temporarily Idled
  15. Jackson Valley Open Pit Mine
    Surface coal · Jackson Valley Energy Partners L P · MSHA ID 0405157
    Abandoned
  16. Irish Hill Portable Plant No. 1
    Surface metal/non-metal · Newman Minerals, LLC · MSHA ID 0405660
    Abandoned
  17. Portable Plant #1
    Surface metal/non-metal · Eland Construction, Inc. · MSHA ID 0405617
    Abandoned
  18. Upper Dry Creek Slate Mine
    Surface metal/non-metal · Horseshoe A Mining Company · MSHA ID 0405410
    Abandoned
  19. Ione Minerals
    Surface metal/non-metal · US Mine Corporation · MSHA ID 0405532
    Abandoned
  20. Ione Plant
    Surface metal/non-metal · Twin Pines Minerals LLC · MSHA ID 0405952
    Abandoned
  21. Newman Minerals No.1
    Surface metal/non-metal · Newman Minerals LLC · MSHA ID 0405845
    Abandoned
  22. High Country Aggregates
    Surface metal/non-metal · High Country Partners LLC · MSHA ID 0405719
    Abandoned
  23. Ione Rock
    Surface metal/non-metal · Ione Rock LP · MSHA ID 0404973
    Abandoned
  24. ISP Granule Products Inc.
    Surface metal/non-metal · ISP Granule Products Inc. · MSHA ID 0405356
    Abandoned
  25. Mgm
    Underground metal/non-metal · Mgm Mining Inc · MSHA ID 0404881
    Abandoned
  26. Irish Hill Aggregate
    Surface metal/non-metal · Kreth Inc · MSHA ID 0404141
    Abandoned
  27. Howard Properties Lot 232
    Surface coal · Jackson Valley Energy Partners L P · MSHA ID 0405126
    Abandoned
  28. Pioneer Lucky Strike Mining Company LLC
    Underground metal/non-metal · Pioneer Lucky Strike Mining Company LLC · MSHA ID 0405862
    Abandoned
  29. TRP Amador Quarry
    Surface metal/non-metal · Triangle Rock Products · MSHA ID 0405981
    Intermittent
  30. Ione Plant
    Surface metal/non-metal · F T G Construction Materials Inc · MSHA ID 0405299
    Abandoned
  31. Berry Pit
    Surface metal/non-metal · H C Muddox · MSHA ID 0405106
    Abandoned
  32. Blackstone Mine
    Underground metal/non-metal · U S Gold Mines Inc · MSHA ID 0404488
    Abandoned
  33. Ex Cramer Gold Mine
    Underground metal/non-metal · Paul Ramm · MSHA ID 0403044
    Abandoned
  34. Fort Ann
    Underground metal/non-metal · Anderson & Associates · MSHA ID 0404578
    Abandoned
  35. Grand Prize
    Underground metal/non-metal · Grand Prize Mining Ltd · MSHA ID 0404481
    Abandoned
  36. Green Decorative Rock
    Surface metal/non-metal · Elden & Sandra Wait · MSHA ID 0404256
    Abandoned
  37. Howard Properties Lot 232
    Surface metal/non-metal · Ione Energy Inc · MSHA ID 0404993
    Abandoned
  38. Indian Hill Mill
    Facility metal/non-metal · Interpace Corp · MSHA ID 0402868
    Abandoned
  39. Ione Area Mines
    Surface metal/non-metal · North American Refractories Company Inc · MSHA ID 0400564
    Abandoned
  40. Ione Plant
    Surface metal/non-metal · Zenith Clay Products Company · MSHA ID 0404166
    Abandoned
  41. Ione Red Clay Pit
    Surface metal/non-metal · Gladding Mc Bean · MSHA ID 0401174
    Abandoned
  42. Irish Hill
    Surface metal/non-metal · Kent Raverty · MSHA ID 0405940
    Abandoned
  43. JACMAR PORTABLE
    Surface metal/non-metal · Jacmar Communications Construction Inc · MSHA ID 0405208
    Abandoned
  44. Lot 232 Pit
    Surface metal/non-metal · Interpace Corp · MSHA ID 0403892
    Abandoned
  45. Mc Guire Pit
    Surface metal/non-metal · Interpace Corp · MSHA ID 0400565
    Abandoned
  46. Wagon Wheel Mine
    Underground metal/non-metal · H W & L E Jones · MSHA ID 0402412
    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.