# Relationship history for MSHA mine 3608440

Current hierarchy: **Dosse Victor → Victor Dosse Contracting Inc → Wyano Strip**

- 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

- **controller_controls_mine:** Dosse Victor → Wyano Strip; 1979-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Victor Dosse Contracting Inc → Wyano Strip; 1993-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dosse Victor → Victor Dosse Contracting Inc; 1993-11-01 to current/open; source msha-controller-operator-history