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MSHA mine register by county

Mines in Merced County, California

Merced County, California has 18 mines on MSHA's register: 3 active, 2 intermittent, 13 abandoned. 106 accidents have been reported at these mines between 1989 and 2026. Inspectors have issued 889 citations.

Every mine MSHA has registered in Merced 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 Merced County →

Mines on register
18
Active
3
Fatalities on record
0
Citations issued
889
0 underground · 18 surface · 0 facilities 0 coal · 18 metal and non-metal 2 intermittent 13 abandoned 106 reported accidents, 1989–2026
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.
Merced County, California · Population 285,597
0.1%
Mining share of county employment
$65,044
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
Santa Fe Aggregates, Inc. 3 1 0
Merced River Mining & Reclamation Corp 2 0 0
Beutel Backhoe Service 1 0 0
BJ Rees's Enterprise 1 0 0
Central Valley Resources Llc 1 0 0
Cressey Sand & Gravel Inc 1 0 0
F. S. Rod Incorporated 1 0 0
George Reed Inc 1 0 0
Le Grand Asphalt 1 0 0
Martin Marietta Northern California Aggregates,LLC 1 1 0
Mines in Merced County18 on register
  1. Merced Aggregates
    Surface metal/non-metal · Martin Marietta Northern California Aggregates,LLC · MSHA ID 0402841
    Active
  2. WINTON PIT & MILL
    Surface metal/non-metal · Santa Fe Aggregates Inc · MSHA ID 0405127
    Active
  3. TRP-Los Banos Plant
    Surface metal/non-metal · Triangle Rock Products · MSHA ID 0401843
    Active
  4. Le Grand Asphalt
    Surface metal/non-metal · Le Grand Asphalt · MSHA ID 0405371
    Intermittent
  5. Snelling Plant/George Reed Inc
    Surface metal/non-metal · George Reed Inc · MSHA ID 0404932
    Abandoned
  6. Valley Sand & Gravel
    Surface metal/non-metal · Valley Sand & Gravel Inc · MSHA ID 0405478
    Abandoned
  7. TURLOCK ROCK
    Surface metal/non-metal · Turlock Rock Company Inc · MSHA ID 0401991
    Abandoned
  8. Santa Fe Aggregates Portable
    Surface metal/non-metal · Santa Fe Aggregates, Inc. · MSHA ID 0405779
    Intermittent
  9. CENTRAL VALLEY RESOURCES
    Surface metal/non-metal · Central Valley Resources Llc · MSHA ID 0405333
    Abandoned
  10. Canyon Rock Pit
    Surface metal/non-metal · F. S. Rod Incorporated · MSHA ID 0405804
    Abandoned
  11. Nordberg G Cone Crusher #1205
    Surface metal/non-metal · BJ Rees's Enterprise · MSHA ID 0405603
    Abandoned
  12. Merced Aggregates LLC
    Surface metal/non-metal · Merced Aggregates LLC · MSHA ID 0405586
    Abandoned
  13. Doolittle Plant
    Surface metal/non-metal · Santa Fe Aggregates Inc · MSHA ID 0405463
    Abandoned
  14. Merced River Mining
    Surface metal/non-metal · Merced River Mining & Reclamation Corp · MSHA ID 0405538
    Abandoned
  15. Beutel Backhoe Service Plant #2
    Surface metal/non-metal · Beutel Backhoe Service · MSHA ID 0404499
    Abandoned
  16. Cressey Pit And Mill
    Surface metal/non-metal · Cressey Sand & Gravel Inc · MSHA ID 0402838
    Abandoned
  17. Kelsey Ranch Mine
    Surface metal/non-metal · Merced River Mining & Reclamation Company · MSHA ID 0405555
    Abandoned
  18. San Luis Rock
    Surface metal/non-metal · San Luis Rock · MSHA ID 0405241
    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.