# Relationship history for MSHA mine 4609410

Current hierarchy: **Gladys A  Stacy → G & R Augering, Inc → Auger #3**

- 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

- **controller_controls_mine:** Gladys A  Stacy → Auger #3; 2001-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** G & R Augering, Inc → Auger #3; 2011-04-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gladys A  Stacy → G & R Augering, Inc; 2011-04-11 to current/open; source msha-controller-operator-history