# Waterloo Sand
> **Metal/Non-metal** mine · MSHA ID `2501314` · Surface · **Abandoned**
## Operator
- **Controller (parent):** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Materials Inc
- **Employees:** 0
- **Commodity:** Nonmetal
## Location
- **State:** NE · Douglas Co.
- **Coordinates:** 41.282778, -96.330833
## 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*