# Relationship history for MSHA mine 1103121

Current hierarchy: **Geraldine P  Turner → S Coal Company → Elkville No.1 Mine**

- 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:** Geraldine P  Turner → Elkville No.1 Mine; 2001-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** S Coal Company → Elkville No.1 Mine; 2003-11-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Geraldine P  Turner → S Coal Company; 2003-11-02 to current/open; source msha-controller-operator-history