← MSHA mines + accidents
Otto Rock Pit
Metal/Non-metal · Surface · 3502473 · Abandoned
Operator
- Controller (parent)
- David H Otto
- Operator
- David H Otto
- Commodity
- Stone
Location
- State
- OR · Washington Co.
- Congressional district
- 01
Source
- Authoritative
- MSHA Mine Data Retrieval System
- Machine
- JSON-LD · Markdown