# Relationship history for MSHA mine 2402411

Current hierarchy: **Rodney B  Clarke; Brian L  Clarke → Bitterroot Ready Mix & Concrete → Bitterroot Rock Pit**

- 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:** Brian L  Clarke et al → Bitterroot Rock Pit; 2004-11-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bitterroot Ready Mix & Concrete → Bitterroot Rock Pit; 2005-06-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brian L  Clarke et al → Bitterroot Ready Mix & Concrete; 2005-06-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rodney B  Clarke et al → Bitterroot Ready Mix & Concrete; 2005-06-17 to current/open; source msha-controller-operator-history