# Mason City Plant
> **Metal/Non-metal** mine · MSHA ID `1300095` · Facility · **Active**
## Operator
- **Controller (parent):** Heidelberg Materials AG
- **Operator:** Heidelberg Materials US Cement LLC
- **Employees:** 143
- **Commodity:** Stone
## Location
- **State:** IA · Cerro Gordo Co.
- **Coordinates:** 43.1775, -93.214167
## Safety record
- **Total accidents/injuries:** 230
- **Fatalities:** 0
- **Total days lost:** 2388
---
*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*