# PIONEER JAW
> **Metal/Non-metal** mine · MSHA ID `4703187` · Surface · **Intermittent**
## Operator
- **Controller (parent):** Daniel L  Silha
- **Operator:** Southern Wisconsin Aggregate Corporation
- **Employees:** 2
- **Commodity:** SandAndGravel
## Location
- **State:** WI · Rock Co.
- **Coordinates:** 42.722222, -88.993056
## Safety record
- **Total accidents/injuries:** 1
- **Fatalities:** 0
- **Total days lost:** 0
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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*