# Relationship history for MSHA mine 4605038

Current hierarchy: **Price Patrick H → Price Resources Inc → No 1 Loading Ramp**

- 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:** Price Resources Inc → No 1 Loading Ramp; 1976-02-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Price Patrick H → No 1 Loading Ramp; 1976-02-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Price Patrick H → Price Resources Inc; 1976-02-05 to current/open; source msha-controller-operator-history