# Relationship history for MSHA mine 1001788

Current hierarchy: **Stanisach Donald → Eagle Creek Mining Company → Camp Creek 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Eagle Creek Mining Company → Camp Creek Placer; 1987-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Stanisach Donald → Camp Creek Placer; 1987-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stanisach Donald → Eagle Creek Mining Company; 1987-06-01 to current/open; source msha-controller-operator-history