# Relationship history for MSHA mine 3610279

Current hierarchy: **Robert E  Elkin → E E & S Auger Mining Inc → 3165**

- 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:** Robert E  Elkin → 3165; 2003-12-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** E E & S Auger Mining Inc → 3165; 2019-03-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert E  Elkin → E E & S Auger Mining Inc; 2019-03-19 to current/open; source msha-controller-operator-history