# Relationship history for MSHA mine 2602897

Current hierarchy: **Centerra Gold Inc → Gemfield Resources LLC → Goldfield**

- 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:** Gemfield Resources LLC → Goldfield; 2023-10-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Centerra Gold Inc → Goldfield; 2023-10-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Centerra Gold Inc → Gemfield Resources LLC; 2023-10-10 to current/open; source msha-controller-operator-history