# PORTABLE UNIT #4
> **Metal/Non-metal** mine · MSHA ID `4703709` · Surface · **Active**
## Operator
- **Controller (parent):** Kristopher P  Bjoin; Shaun M  Bjoin; Jonathan M  Bjoin
- **Operator:** BJOIN LIMESTONE INC.
- **Employees:** 3
- **Commodity:** Stone
## Location
- **State:** WI · Rock Co.
- **Coordinates:** 42.664167, -89.0325
## 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*