# Relationship history for MSHA mine 3401043

Current hierarchy: **Cherokee County-Ok → Cherokee County → TAHLEQUAH PITTS**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Charley Ryals → TAHLEQUAH PITTS; 1950-01-01 to 2001-02-27; source msha-controller-operator-history
- **controller_controls_mine:** Charley Ryals → TAHLEQUAH PITTS; 1950-01-01 to 2001-02-27; source msha-controller-operator-history
- **controller_controls_operator:** Charley Ryals → Charley Ryals; 1950-01-01 to 2001-02-27; source msha-controller-operator-history
- **controller_controls_mine:** Cherokee County-Ok → TAHLEQUAH PITTS; 2001-01-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cherokee County → TAHLEQUAH PITTS; 2001-02-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cherokee County-Ok → Cherokee County; 2001-02-28 to current/open; source msha-controller-operator-history