# Relationship history for MSHA mine 0301968

Current hierarchy: **Boyce E Page → South Yell County Gravel Co → South Yell Country Gravel Co**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** South Yell County Gravel Co → South Yell Country Gravel Co; 2008-06-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James  Mitchell → South Yell Country Gravel Co; 2008-06-12 to 2022-05-10; source msha-controller-operator-history
- **controller_controls_operator:** James  Mitchell → South Yell County Gravel Co; 2008-06-12 to 2022-05-10; source msha-controller-operator-history
- **controller_controls_mine:** Boyce E Page → South Yell Country Gravel Co; 2022-05-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Boyce E Page → South Yell County Gravel Co; 2022-05-11 to current/open; source msha-controller-operator-history