# Relationship history for MSHA mine 2700369

Current hierarchy: **Theodore  Ingerson → LeCheval Logging & Chipping Inc. → Hillside Gravel**

- 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:** Hillside Gravel → Hillside Gravel; 2001-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Theodore  Ingerson → Hillside Gravel; 2001-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Theodore  Ingerson → Hillside Gravel; 2001-07-01 to current/open; source msha-controller-operator-history