# Relationship history for MSHA mine 4608223

Current hierarchy: **Griffith John T Jr → Neese Coal Inc → Cotton Hill Highwall**

- 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:** Griffith John T Jr → Cotton Hill Highwall; 1992-07-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** King Carney → Cotton Hill Highwall; 1992-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cynthia Lee Coal Company → Cotton Hill Highwall; 1992-09-01 to 1992-10-27; source msha-controller-operator-history
- **controller_controls_operator:** King Carney → Cynthia Lee Coal Company; 1992-09-01 to 1992-10-27; source msha-controller-operator-history
- **operator_operates_mine:** Neese Coal Inc → Cotton Hill Highwall; 1992-10-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Griffith John T Jr → Neese Coal Inc; 1992-10-28 to current/open; source msha-controller-operator-history