# Relationship history for MSHA mine 4607370

Current hierarchy: **Moore Dana E → Red Stone Coal Inc → Red Stone #1**

- 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:** Radabaugh Austin Blaine Et Al → Red Stone #1; 1985-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Chieftain Mining Company Inc → Red Stone #1; 1987-09-01 to 1989-03-05; source msha-controller-operator-history
- **controller_controls_mine:** Lang David B → Red Stone #1; 1987-09-01 to 1990-05-22; source msha-controller-operator-history
- **controller_controls_operator:** Lang David B → Chieftain Mining Company Inc; 1987-09-01 to 1989-03-05; source msha-controller-operator-history
- **operator_operates_mine:** Sand Run Coal Company → Red Stone #1; 1989-03-06 to 1989-04-16; source msha-controller-operator-history
- **controller_controls_mine:** Williams Perry → Red Stone #1; 1989-03-06 to 1989-04-16; source msha-controller-operator-history
- **controller_controls_operator:** Williams Perry → Sand Run Coal Company; 1989-03-06 to 1989-04-16; source msha-controller-operator-history
- **operator_operates_mine:** Chieftain Mining Company Inc → Red Stone #1; 1989-04-17 to 1990-05-22; source msha-controller-operator-history
- **controller_controls_operator:** Lang David B → Chieftain Mining Company Inc; 1989-04-17 to 1990-05-22; source msha-controller-operator-history
- **operator_operates_mine:** Proven Coal Reserves Inc → Red Stone #1; 1990-05-23 to 1992-03-04; source msha-controller-operator-history
- **controller_controls_operator:** Radabaugh Austin Blaine Et Al → Proven Coal Reserves Inc; 1990-05-23 to 1992-03-04; source msha-controller-operator-history
- **operator_operates_mine:** Red Stone Coal Inc → Red Stone #1; 1992-03-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Moore Dana E → Red Stone #1; 1992-03-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Moore Dana E → Red Stone Coal Inc; 1992-03-05 to current/open; source msha-controller-operator-history