# Relationship history for MSHA mine 4202287

Current hierarchy: **Larry P  Scrivanich → Oakley Mountain Corp → Clark Basin - Dove Creek**

- 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:** Bonneville Quarries Inc → Clark Basin - Dove Creek; 2000-05-01 to 2005-05-25; source msha-controller-operator-history
- **controller_controls_mine:** William L  Bown → Clark Basin - Dove Creek; 2000-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William L  Bown → Bonneville Quarries Inc; 2000-05-01 to 2005-05-25; source msha-controller-operator-history
- **operator_operates_mine:** Dove Creek Quarries LLC → Clark Basin - Dove Creek; 2005-05-26 to 2025-05-04; source msha-controller-operator-history
- **controller_controls_mine:** David D  Morris  et al → Clark Basin - Dove Creek; 2005-05-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David D  Morris  et al → Dove Creek Quarries LLC; 2005-05-26 to 2025-05-04; source msha-controller-operator-history
- **controller_controls_operator:** Daniel R  Cates  et al → Dove Creek Quarries LLC; 2005-05-26 to 2025-05-04; source msha-controller-operator-history
- **controller_controls_mine:** Larry P  Scrivanich → Clark Basin - Dove Creek; 2006-07-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Oakley Mountain Corp → Clark Basin - Dove Creek; 2025-05-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry P  Scrivanich → Oakley Mountain Corp; 2025-05-05 to current/open; source msha-controller-operator-history