# Relationship history for MSHA mine 4503560

Current hierarchy: **Jason R  Good → Good Inc → Good's Quarry @ Kelso**

- 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

- **controller_controls_mine:** Jason R  Good → Good's Quarry @ Kelso; 2004-01-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Westside Quarry Inc → Good's Quarry @ Kelso; 2004-01-28 to 2009-09-09; source msha-controller-operator-history
- **controller_controls_mine:** Dale L  Wallace → Good's Quarry @ Kelso; 2004-01-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dale L  Wallace → Westside Quarry Inc; 2004-01-28 to 2009-09-09; source msha-controller-operator-history
- **operator_operates_mine:** Good Inc → Good's Quarry @ Kelso; 2009-09-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jason R  Good → Good Inc; 2009-09-10 to current/open; source msha-controller-operator-history