# Portable #4
> **Metal/Non-metal** mine · MSHA ID `2402047` · Surface · **Temporarily Idled**
## Operator
- **Controller (parent):** Knife River Corporation
- **Operator:**  Knife River Billings
- **Employees:** 2
- **Commodity:** SandAndGravel
## Location
- **State:** MT · Yellowstone Co.
- **Coordinates:** 45.856111, -108.418056
## Safety record
- **Total accidents/injuries:** 1
- **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*