# Relationship history for MSHA mine 4404582

Current hierarchy: **Browning Denver → General Trucking Corp → No 3 Strip & Auger**

- 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:** Jessee Bill W → No 3 Strip & Auger; 1972-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** General Trucking Corp → No 3 Strip & Auger; 1977-01-01 to 1985-07-30; source msha-controller-operator-history
- **controller_controls_operator:** Jessee Bill W → General Trucking Corp; 1977-01-01 to 1985-07-30; source msha-controller-operator-history
- **operator_operates_mine:** General Trucking Corp → No 3 Strip & Auger; 1985-07-31 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Browning Denver → No 3 Strip & Auger; 1985-07-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Browning Denver → General Trucking Corp; 1985-07-31 to current/open; source msha-controller-operator-history