# Federal Underground
> **Metal/Non-metal** mine · MSHA ID `1102814` · Underground · **Active**
## Operator
- **Controller (parent):** Heidelberg Materials AG
- **Operator:** Heidelberg Materials Midwest Agg, Inc.
- **Employees:** 3
- **Commodity:** Stone
## Location
- **State:** IL · Cook Co.
- **Coordinates:** 41.805364, -87.847924
## Safety record
- **Total accidents/injuries:** 17
- **Fatalities:** 0
- **Total days lost:** 270
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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*