# Relationship history for MSHA mine 2402577

Current hierarchy: **Estate of Clint Stovall → C & S Construction Inc → Cedar Rapids Cone Crusher**

- 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:** Estate of Clint Stovall → Cedar Rapids Cone Crusher; 2003-01-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** C & S Construction Inc → Cedar Rapids Cone Crusher; 2010-12-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Estate of Clint Stovall → C & S Construction Inc; 2010-12-22 to current/open; source msha-controller-operator-history