# Relationship history for MSHA mine 2103983

Current hierarchy: **Richard J  McRae → McRae Land Improvements LLC → McRae 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:** McRae Land Improvements LLC → McRae Pit; 2020-07-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Richard J  McRae → McRae Pit; 2020-07-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard J  McRae → McRae Land Improvements LLC; 2020-07-30 to current/open; source msha-controller-operator-history