# Relationship history for MSHA mine 4002498

Current hierarchy: **Chandler Eddie--Avon Farris & Wayne Gamble → C F G Mining Company → No 1 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

- **operator_operates_mine:** C F G Mining Company → No 1 Strip; 1979-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Chandler Eddie--Avon Farris & Wayne Gamble → No 1 Strip; 1979-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chandler Eddie--Avon Farris & Wayne Gamble → C F G Mining Company; 1979-02-01 to current/open; source msha-controller-operator-history