# Tunnel City
> **Metal/Non-metal** mine · MSHA ID `4703699` · Surface · **Active**
## Operator
- **Controller (parent):** Iron Oak Energy Solutions LLC
- **Operator:** Iron Oak Sand LLC
- **Employees:** 12
- **Commodity:** SandAndGravel
## Location
- **State:** WI · Monroe Co.
- **Coordinates:** 44.008333, -90.566944
## Safety record
- **Total accidents/injuries:** 44
- **Fatalities:** 0
- **Total days lost:** 503
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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*