← MSHA mines + accidents
Johnson3
Metal/Non-metal · Surface · 2501266 · Intermittent
Operator
- Controller (parent)
- Roland W Johnson
- Operator
- JOHNSON SAND & GRAVEL COMPANY, INC.
- Commodity
- SandAndGravel
Location
- State
- NE · Polk Co.
- Coordinates
- 41.448611, -97.730556
Source
- Authoritative
- MSHA Mine Data Retrieval System
- Machine
- JSON-LD · Markdown