# Margaret No 11
> **Coal** mine · MSHA ID `3605038` · Underground · **Abandoned and Sealed**
## Operator
- **Controller (parent):** Rochester & Pittsburgh Coal Company
- **Operator:** Keystone Coal Mining Corp
- **Employees:** 0
- **Commodity:** Coal
## Location
- **State:** PA · Armstrong Co.
- **Coordinates:** 40.72, -79.3936
## Safety record
- **Total accidents/injuries:** 0
- **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*