Hi-Grade Materials Littlerock Quarry Metal/Non-Metal
Hi-Grade Materials
· Surface
Controlled by
Robar Enterprises Inc
San Diego County,
CA
·
Abandoned
MSHA Mine ID: 0404082
MSHA record for Hi-Grade Materials Littlerock Quarry (mine ID 0404082). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.
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- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Ownership history
- Nelson & Sloan 1950 to 1994
- Hi-Grade Materials 1994 to present
Source: MSHA controller and operator history, updated weekly.
Hi-Grade Materials Littlerock Quarry sits in San Diego County, California, where the Census mining category is 0.0% of county employment.
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.San Diego County, California · Population 3,282,782
0.0%
Mining share of county employment
$102,285
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
No reportable incidents on file.
MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.