# Relationship history for MSHA mine 4105073

Current hierarchy: **Chuck  Williams → Chuck's Dozer Service, Inc → RC#1**

- 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:** Chuck's Dozer Service, Inc → RC#1; 2014-06-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Chuck  Williams → RC#1; 2014-06-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chuck  Williams → Chuck's Dozer Service, Inc; 2014-06-26 to current/open; source msha-controller-operator-history