# Relationship history for MSHA mine 4703581

Current hierarchy: **John D  Scott → Scott Construction, Inc → PINE VALLEY**

- 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

- **controller_controls_mine:** John D  Scott → PINE VALLEY; 1993-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** DTR Properties → PINE VALLEY; 2010-03-12 to 2012-04-25; source msha-controller-operator-history
- **controller_controls_mine:** John D  Scott → PINE VALLEY; 2010-03-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John D  Scott → DTR Properties; 2010-03-12 to 2012-04-25; source msha-controller-operator-history
- **operator_operates_mine:** Scott Construction, Inc → PINE VALLEY; 2012-04-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John D  Scott → Scott Construction, Inc; 2012-04-26 to current/open; source msha-controller-operator-history