# Relationship history for MSHA mine 5002045

Current hierarchy: **Robert R Fithian; Mark  Horne → Sundance Mining Group LLC → Dawson Mine**

- 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:** Sundance Mining Group LLC → Dawson Mine; 2017-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mark  Horne et al → Dawson Mine; 2017-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mark  Horne et al → Sundance Mining Group LLC; 2017-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert R Fithian et al → Sundance Mining Group LLC; 2017-03-01 to current/open; source msha-controller-operator-history