# Stamper Underground
> **Metal/Non-metal** mine · MSHA ID `2302232` · Underground · **NonProducing**
## Operator
- **Controller (parent):** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Kansas City, LLC
- **Employees:** 4
- **Commodity:** Stone
## Location
- **State:** MO · Platte Co.
- **Coordinates:** 39.346667, -94.680278
## Safety record
- **Total accidents/injuries:** 23
- **Fatalities:** 1
- **Total days lost:** 97
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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*