# Relationship history for MSHA mine 4202672

Current hierarchy: **Ryan R Jones → Rocks n Renches → Lewis 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:** Rocks n Renches → Lewis Pit; 2017-06-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ryan R Jones → Lewis Pit; 2017-06-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ryan R Jones → Rocks n Renches; 2017-06-07 to current/open; source msha-controller-operator-history