# Relationship history for MSHA mine 4406908

Current hierarchy: **Garry W  Carroll → Garry Carroll Trucking Inc → Dale Ridge Hollow #4**

- 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:** Garry W  Carroll → Dale Ridge Hollow #4; 1995-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Garry Carroll Trucking Inc → Dale Ridge Hollow #4; 1998-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Garry W  Carroll → Garry Carroll Trucking Inc; 1998-03-01 to current/open; source msha-controller-operator-history