# Relationship history for MSHA mine 3610455

Current hierarchy: **Rockdale Township-PA → Rockdale Township → Rockdale Township 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Rockdale Township → Rockdale Township Pit; 2024-11-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rockdale Township-PA → Rockdale Township Pit; 2024-11-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rockdale Township-PA → Rockdale Township; 2024-11-18 to current/open; source msha-controller-operator-history