# Grimes Rock a CalPortland Company
> **Metal/Non-metal** mine · MSHA ID `0405432` · Surface · **Active**
## Operator
- **Controller (parent):** Taiheiyo Cement Corp
- **Operator:** CalPortland
- **Employees:** 14
- **Commodity:** SandAndGravel
## Location
- **State:** CA · Ventura Co.
- **Coordinates:** 34.334722, -118.909444
## Safety record
- **Total accidents/injuries:** 15
- **Fatalities:** 0
- **Total days lost:** 316
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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*