# Relationship history for MSHA mine 4105611

Current hierarchy: **Jeff D  Leach → Basecamp Terlingua LLC → Not Yours But 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

- **operator_operates_mine:** Basecamp Terlingua LLC → Not Yours But Mine; 2022-02-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jeff D  Leach → Not Yours But Mine; 2022-02-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeff D  Leach → Basecamp Terlingua LLC; 2022-02-23 to current/open; source msha-controller-operator-history