# Relationship history for MSHA mine 5000995

Current hierarchy: **Rodgers & Babler & Johnson S & G → Glacier Products → Johnson 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:** Alaska Asphalt & Paving Inc → Johnson Pit; 1950-01-01 to 1979-06-25; source msha-controller-operator-history
- **controller_controls_mine:** Alaska Asphalt & Paving Inc → Johnson Pit; 1950-01-01 to 1979-06-25; source msha-controller-operator-history
- **controller_controls_operator:** Alaska Asphalt & Paving Inc → Alaska Asphalt & Paving Inc; 1950-01-01 to 1979-06-25; source msha-controller-operator-history
- **operator_operates_mine:** Joe'S Trucking Company → Johnson Pit; 1979-06-26 to 1980-06-23; source msha-controller-operator-history
- **controller_controls_mine:** Giammalva Jeanette → Johnson Pit; 1979-06-26 to 1980-06-23; source msha-controller-operator-history
- **controller_controls_operator:** Giammalva Jeanette → Joe'S Trucking Company; 1979-06-26 to 1980-06-23; source msha-controller-operator-history
- **operator_operates_mine:** Glacier Products → Johnson Pit; 1980-06-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rodgers & Babler & Johnson S & G → Johnson Pit; 1980-06-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rodgers & Babler & Johnson S & G → Glacier Products; 1980-06-24 to current/open; source msha-controller-operator-history