# Relationship history for MSHA mine 0801085

Current hierarchy: **Collins Earl Sr → Earl Collins & Son Site Dev D/B/A E & E Dragline → E & E Pit**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Earl Collins & Son Site Dev D/B/A E & E Dragline → E & E Pit; 1987-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Collins Earl Sr → E & E Pit; 1987-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Collins Earl Sr → Earl Collins & Son Site Dev D/B/A E & E Dragline; 1987-11-01 to current/open; source msha-controller-operator-history