# Relationship history for MSHA mine 1701174

Current hierarchy: **Gary R  Laverdiere; Terrence S  Allison; Jeffrey S  McCarthy → Colton Hill Mining LLC → Colton Hill**

- 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:** Colton Hill Mining LLC → Colton Hill; 2026-06-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Terrence S  Allison et al → Colton Hill; 2026-06-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Terrence S  Allison et al → Colton Hill Mining LLC; 2026-06-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary R  Laverdiere et al → Colton Hill Mining LLC; 2026-06-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey S  McCarthy et al → Colton Hill Mining LLC; 2026-06-02 to current/open; source msha-controller-operator-history