# Relationship history for MSHA mine 2602086

Current hierarchy: **Newmont Mining Corp & Cornucopia Resources Ltd → Newmont Exploration Limited → HOLLISTER 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Ivanhoe Gold Company → HOLLISTER MINE; 1988-09-01 to 1992-06-22; source msha-controller-operator-history
- **controller_controls_mine:** Galactic Resources Ltd & Cornucopia Resources Ltd → HOLLISTER MINE; 1988-09-01 to 1992-06-22; source msha-controller-operator-history
- **controller_controls_operator:** Galactic Resources Ltd & Cornucopia Resources Ltd → Ivanhoe Gold Company; 1988-09-01 to 1992-06-22; source msha-controller-operator-history
- **operator_operates_mine:** Newmont Exploration Limited → HOLLISTER MINE; 1992-06-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Newmont Mining Corp & Cornucopia Resources Ltd → HOLLISTER MINE; 1992-06-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Newmont Mining Corp & Cornucopia Resources Ltd → Newmont Exploration Limited; 1992-06-23 to current/open; source msha-controller-operator-history