# Relationship history for MSHA mine 5001266

Current hierarchy: **Wrangell Mining Company → Wrangell Mining Company → Many Moose Placer**

- 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:** Wrangell Mining Company → Many Moose Placer; 1978-03-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Wrangell Mining Company → Many Moose Placer; 1978-03-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wrangell Mining Company → Wrangell Mining Company; 1978-03-09 to current/open; source msha-controller-operator-history