# Relationship history for MSHA mine 4503566

Current hierarchy: **Geoff D  Nestor → GDN Enterprises, Inc → 3 Lakes 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:** GDN Enterprises, Inc → 3 Lakes Quarry; 2004-06-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Geoff D  Nestor → 3 Lakes Quarry; 2004-06-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Geoff D  Nestor → GDN Enterprises, Inc; 2004-06-24 to current/open; source msha-controller-operator-history