# Relationship history for MSHA mine 2003239

Current hierarchy: **Rod  Van Erp → Central Stone & Gravel, LLC → Central #2**

- 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

- **controller_controls_mine:** Rod  Van Erp  et al → Central #2; 2000-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Central Stone & Gravel, LLC → Central #2; 2001-11-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rod  Van Erp  et al → Central Stone & Gravel, LLC; 2001-11-15 to current/open; source msha-controller-operator-history