# Relationship history for MSHA mine 1002284

Current hierarchy: **Brandon  Bales; Michael  Bales → Riverside Rock Products → Franklin 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:** Riverside Rock Products → Franklin Pit; 2016-12-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Brandon  Bales et al → Franklin Pit; 2016-12-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brandon  Bales et al → Riverside Rock Products; 2016-12-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Bales et al → Riverside Rock Products; 2016-12-20 to current/open; source msha-controller-operator-history