# Black Mountain Quarry
> **Metal/Non-metal** mine · MSHA ID `0405701` · Facility · **Active**
## Operator
- **Controller (parent):** Cemex S A
- **Operator:** CEMEX Construction Materials Pacific, LLC
- **Employees:** 133
- **Commodity:** Stone
## Location
- **State:** CA · San Bernardino Co.
- **Coordinates:** 34.616944, -117.128056
## Safety record
- **Total accidents/injuries:** 167
- **Fatalities:** 0
- **Total days lost:** 1784
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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*