# Relationship history for MSHA mine 4604367

Current hierarchy: **Harris Lynn → Dexcar Queen Coal Company Inc → Queen No 13**

- 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:** Harris Lynn → Queen No 13; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Dexcar Queen Coal Company Inc → Queen No 13; 1974-09-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harris Lynn → Dexcar Queen Coal Company Inc; 1974-09-23 to current/open; source msha-controller-operator-history