Source data row 9430
MSHA mine-register snapshot. Active means the status reported in this download, not a current operating guarantee or DOT materials approval. Coordinates are reported by the source and may represent portable operations.
- MSHA mine ID
- 0503935
- Mine name in source
- Walstrum Quarry
- Mine type in source
- Surface
- Status in source
- Active
- Status effective date in source
- 09/03/2014
- Operator in source
- Martin Marietta Materials
- State
- CO
- County
- Clear Creek
- Nearest town in source
- Idaho Springs
- Primary commodity code
- 142300
- Primary commodity in source
- Crushed, Broken Granite
- Portable operation flag (Y/N)
- N
- Reported latitude
- 39.746389
- Reported longitude
- -105.433889