← MSHA mines + accidents
Grayhawk HP 400
Metal/Non-metal · Surface · 2103843 · Intermittent
Operator
- Controller (parent)
- Mathy Construction Company
- Operator
- Mathy Constr. Co. DBA Northland Constrs. of Duluth
- Commodity
- SandAndGravel
Location
- State
- MN · St Louis Co.
- Coordinates
- 46.911389, -92.470833
Source
- Authoritative
- MSHA Mine Data Retrieval System
- Machine
- JSON-LD · Markdown