# Relationship history for MSHA mine 5002014

Current hierarchy: **Heritage Homes, LLC → Heritage General Contracting → HGC Gravel Pit 1**

- 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:** Heritage General Contracting → HGC Gravel Pit 1; 2014-05-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Heritage Homes, LLC → HGC Gravel Pit 1; 2014-05-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Heritage Homes, LLC → Heritage General Contracting; 2014-05-20 to current/open; source msha-controller-operator-history