# Relationship history for MSHA mine 2602709

Current hierarchy: **Dorothy Jo  Rowley; Jeb R  Rowley → Rowley's Ready-Mix, LLC → Minoletti 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

- **operator_operates_mine:** Rowley's Ready-Mix, LLC → Minoletti Pit; 2012-02-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Dorothy Jo  Rowley et al → Minoletti Pit; 2012-02-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dorothy Jo  Rowley et al → Rowley's Ready-Mix, LLC; 2012-02-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeb R  Rowley et al → Rowley's Ready-Mix, LLC; 2012-02-23 to current/open; source msha-controller-operator-history