← MSHA mines + accidents
Columbia Quarry
Metal/Non-metal · Surface · 0402297 · Abandoned
Operator
- Controller (parent)
- Cph Sub Inc & Marine Magnesium Management Company
- Operator
- Marine Magnesium Company
- Commodity
- Stone
Location
- State
- CA · Tuolumne Co.
- Congressional district
- 04
Source
- Authoritative
- MSHA Mine Data Retrieval System
- Machine
- JSON-LD · Markdown