# Relationship history for MSHA mine 3003421

Current hierarchy: **Carver P  Laraway → Carver Crushing Co. LLC → Jaw Plant**

- 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:** Carver Crushing Co. LLC → Jaw Plant; 2002-06-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Carver P  Laraway et al → Jaw Plant; 2002-06-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carver P  Laraway et al → Carver Crushing Co. LLC; 2002-06-07 to current/open; source msha-controller-operator-history