# Relationship history for MSHA mine 0404546

Current hierarchy: **Chittenden Ted → Avid Mining Company → Sunnyside 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:** Ar-Luk Mines → Sunnyside Placer; 1981-10-01 to 1985-07-15; source msha-controller-operator-history
- **controller_controls_mine:** Lucky Chance Mining Company & Arg Petroleum Corp → Sunnyside Placer; 1981-10-01 to 1985-07-15; source msha-controller-operator-history
- **controller_controls_operator:** Lucky Chance Mining Company & Arg Petroleum Corp → Ar-Luk Mines; 1981-10-01 to 1985-07-15; source msha-controller-operator-history
- **operator_operates_mine:** Avid Mining Company → Sunnyside Placer; 1985-07-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Chittenden Ted → Sunnyside Placer; 1985-07-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chittenden Ted → Avid Mining Company; 1985-07-16 to current/open; source msha-controller-operator-history