# Relationship history for MSHA mine 4202745

Current hierarchy: **Todd  Cusick → CMC Rock, LLC → Cedar Fort Quarry**

- 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

- **controller_controls_mine:** Todd  Cusick → Cedar Fort Quarry; 2017-07-25 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** CMC Rock, LLC → Cedar Fort Quarry; 2023-01-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Todd  Cusick → CMC Rock, LLC; 2023-01-23 to current/open; source msha-controller-operator-history