# Relationship history for MSHA mine 1001485

Current hierarchy: **Baker Virgil L → Virgil L Baker → Baker'S Lode**

- 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:** Virgil L Baker → Baker'S Lode; 1980-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Baker Virgil L → Baker'S Lode; 1980-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Baker Virgil L → Virgil L Baker; 1980-07-01 to current/open; source msha-controller-operator-history