# Ridge Deep Mine
> **Coal** mine · MSHA ID `3608733` · Underground · **Abandoned and Sealed**
## Operator
- **Controller (parent):** Alpha Natural Resources, Inc.
- **Operator:** AMFIRE Mining Company LLC
- **Employees:** 0
- **Commodity:** Coal
## Location
- **State:** PA · Armstrong Co.
- **Coordinates:** 40.588333, -79.395277
## Safety record
- **Total accidents/injuries:** 14
- **Fatalities:** 0
- **Total days lost:** 239
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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*