# Relationship history for MSHA mine 3606037

Current hierarchy: **Cowfer James I Sr → James I Cowfer Contracting Company Inc → 725 Page Strip**

- 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:** James I Cowfer Contracting Company Inc → 725 Page Strip; 1976-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cowfer James I Sr → 725 Page Strip; 1976-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cowfer James I Sr → James I Cowfer Contracting Company Inc; 1976-01-01 to current/open; source msha-controller-operator-history