# Relationship history for MSHA mine 5001871

Current hierarchy: **Steve  Manz; Michael P  Gross → Freegold Recovery U.S.A. → Golden Summit Project**

- 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:** Freegold Recovery U.S.A. → Golden Summit Project; 2007-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Michael P  Gross et al → Golden Summit Project; 2007-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael P  Gross et al → Freegold Recovery U.S.A.; 2007-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Manz et al → Freegold Recovery U.S.A.; 2007-08-15 to current/open; source msha-controller-operator-history