# Relationship history for MSHA mine 2302608

Current hierarchy: **Kristina  Miller → 5M Rock Quarry, LLC → 5M Rock 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:** 5M Rock Quarry, LLC → 5M Rock Quarry; 2026-03-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kristina  Miller → 5M Rock Quarry; 2026-03-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kristina  Miller → 5M Rock Quarry, LLC; 2026-03-30 to current/open; source msha-controller-operator-history