# Relationship history for MSHA mine 1517682

Current hierarchy: **Larry  Cantrell → Cedar Grove Mining Inc → 10**

- 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:** Larry  Cantrell → 10; 1983-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cedar Grove Mining Inc → 10; 1995-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry  Cantrell → Cedar Grove Mining Inc; 1995-06-01 to current/open; source msha-controller-operator-history