# Relationship history for MSHA mine 3102127

Current hierarchy: **Carol  Waycaster → Carol Waycaster Stone Sales → C F Mining**

- 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:** Carol Waycaster Stone Sales → C F Mining; 1998-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Carol  Waycaster → C F Mining; 1998-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carol  Waycaster → Carol Waycaster Stone Sales; 1998-06-01 to current/open; source msha-controller-operator-history