# Relationship history for MSHA mine 3607585

Current hierarchy: **Kush James M → Bauermaster Coal Company Inc → Bauermaster Strip**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Bauermaster Coal Company Inc → Bauermaster Strip; 1984-06-01 to 1991-07-29; source msha-controller-operator-history
- **controller_controls_mine:** Bauermaster Robert M → Bauermaster Strip; 1984-06-01 to 1991-07-29; source msha-controller-operator-history
- **controller_controls_operator:** Bauermaster Robert M → Bauermaster Coal Company Inc; 1984-06-01 to 1991-07-29; source msha-controller-operator-history
- **operator_operates_mine:** Bauermaster Coal Company Inc → Bauermaster Strip; 1991-07-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kush James M → Bauermaster Strip; 1991-07-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kush James M → Bauermaster Coal Company Inc; 1991-07-30 to current/open; source msha-controller-operator-history