# Relationship history for MSHA mine 4406731

Current hierarchy: **Hunter  Darden III → Hunter Darden III → Darden 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

- **controller_controls_mine:** Richard H  Rose Jr → Darden Pit; 1992-06-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Materials Delivery → Darden Pit; 1993-01-01 to 2015-03-17; source msha-controller-operator-history
- **controller_controls_operator:** Richard H  Rose Jr → Materials Delivery; 1993-01-01 to 2015-03-17; source msha-controller-operator-history
- **operator_operates_mine:** Hunter Darden III → Darden Pit; 2015-03-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hunter  Darden III → Darden Pit; 2015-03-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hunter  Darden III → Hunter Darden III; 2015-03-18 to current/open; source msha-controller-operator-history