# Relationship history for MSHA mine 0103629

Current hierarchy: **Eric  Gargus → Gargus Excavating & Clearing → Gargus Borrow 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:** Gargus Excavating & Clearing → Gargus Borrow Pit; 2025-08-31 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Eric  Gargus → Gargus Borrow Pit; 2025-08-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eric  Gargus → Gargus Excavating & Clearing; 2025-08-31 to current/open; source msha-controller-operator-history