# Relationship history for MSHA mine 4503339

Current hierarchy: **David G  Randles → Lynch Creek Quarry LLC → Randle's Lynch Creek Quarry LLC,Port.Cru**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **controller_controls_mine:** David G  Randles → Randle's Lynch Creek Quarry LLC,Port.Cru; 1991-03-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lynch Creek Quarry LLC → Randle's Lynch Creek Quarry LLC,Port.Cru; 1995-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David G  Randles → Lynch Creek Quarry LLC; 1995-06-01 to current/open; source msha-controller-operator-history