# Relationship history for MSHA mine 3101183

Current hierarchy: **Raymond S  Cecile → K & C Crushed Stone Inc → BAMBOO 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

- **operator_operates_mine:** K & C Crushed Stone Inc → BAMBOO QUARRY; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Raymond S  Cecile et al → BAMBOO QUARRY; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Raymond S  Cecile et al → K & C Crushed Stone Inc; 1950-01-01 to current/open; source msha-controller-operator-history