# Relationship history for MSHA mine 2602051

Current hierarchy: **i-80 Gold Corp → AU-REKA GOLD LLC → Cove Underground 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

- **controller_controls_mine:** Echo Bay Mines Ltd → Cove Underground Project; 1986-11-19 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Echo Bay Minerals Company → Cove Underground Project; 1988-02-01 to 2018-03-11; source msha-controller-operator-history
- **controller_controls_operator:** Echo Bay Mines Ltd → Echo Bay Minerals Company; 1988-02-01 to 2018-03-11; source msha-controller-operator-history
- **operator_operates_mine:** AU-REKA GOLD LLC → Cove Underground Project; 2018-03-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Premier Gold Mines Limited → Cove Underground Project; 2018-03-12 to 2021-08-19; source msha-controller-operator-history
- **controller_controls_operator:** Premier Gold Mines Limited → AU-REKA GOLD LLC; 2018-03-12 to 2021-08-19; source msha-controller-operator-history
- **controller_controls_mine:** i-80 Gold Corp → Cove Underground Project; 2021-08-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** i-80 Gold Corp → AU-REKA GOLD LLC; 2021-08-20 to current/open; source msha-controller-operator-history