# Relationship history for MSHA mine 4105269

Current hierarchy: **Juan Carlos  Bocanegra → Bocanegra Stone → Bocanegra Stone**

- 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:** Dailey Trucking & Landscape Rock → Bocanegra Stone; 2017-06-14 to 2020-07-01; source msha-controller-operator-history
- **controller_controls_mine:** Charles  Dailey → Bocanegra Stone; 2017-06-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles  Dailey → Dailey Trucking & Landscape Rock; 2017-06-14 to 2020-07-01; source msha-controller-operator-history
- **operator_operates_mine:** Bocanegra Stone → Bocanegra Stone; 2020-07-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Juan Carlos  Bocanegra → Bocanegra Stone; 2020-07-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Juan Carlos  Bocanegra → Bocanegra Stone; 2020-07-02 to current/open; source msha-controller-operator-history