# Relationship history for MSHA mine 0203093

Current hierarchy: **Chuck  Humpherys → Cedar Creek Stone LLC → Salado**

- 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

- **operator_operates_mine:** Cedar Creek Stone LLC → Salado; 2005-08-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Chuck  Humpherys → Salado; 2005-08-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chuck  Humpherys → Cedar Creek Stone LLC; 2005-08-29 to current/open; source msha-controller-operator-history