# Relationship history for MSHA mine 0502714

Current hierarchy: **Fulton Caesar & Charles A Denton → Milner Coal Corp → Denton 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

- **controller_controls_mine:** Fulton Caesar & Charles A Denton → Denton Strip; 1975-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Milner Coal Corp → Denton Strip; 1975-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Fulton Caesar & Charles A Denton → Milner Coal Corp; 1975-06-01 to current/open; source msha-controller-operator-history