# Relationship history for MSHA mine 4406080

Current hierarchy: **Coleman Dennis S & Shannon → Chestnut Ridge Fuel Corp → #1-A**

- 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

- **controller_controls_mine:** Coleman Dennis S & Shannon → #1-A; 1977-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Chestnut Ridge Fuel Corp → #1-A; 1984-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Coleman Dennis S & Shannon → Chestnut Ridge Fuel Corp; 1984-04-01 to current/open; source msha-controller-operator-history