# Relationship history for MSHA mine 1800762

Current hierarchy: **Darren  Disney → Disney Sand & Gravel LLC → Disney Sand & Gravel LLC**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Disney Sand & Gravel LLC → Disney Sand & Gravel LLC; 2003-10-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Darren  Disney → Disney Sand & Gravel LLC; 2003-10-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Darren  Disney → Disney Sand & Gravel LLC; 2003-10-22 to current/open; source msha-controller-operator-history