# Relationship history for MSHA mine 4605590

Current hierarchy: **Haynes L M → Rainelle Air Park Inc → Green Siding**

- 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:** Rainelle Air Park Inc → Green Siding; 1977-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Haynes L M → Green Siding; 1977-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Haynes L M → Rainelle Air Park Inc; 1977-08-15 to current/open; source msha-controller-operator-history