# Relationship history for MSHA mine 2602159

Current hierarchy: **i-80 Gold Corp → Goldcorp DEE LLC → Lone Tree 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

- **controller_controls_mine:** Newmont Corporation → Lone Tree Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Santa Fe Pacific Corp → Lone Tree Mine; 1988-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Santa Fe Pacific Gold Corp → Lone Tree Mine; 1990-06-01 to 1997-05-04; source msha-controller-operator-history
- **controller_controls_operator:** Santa Fe Pacific Corp → Santa Fe Pacific Gold Corp; 1990-06-01 to 1997-05-04; source msha-controller-operator-history
- **operator_operates_mine:** Newmont USA Limited → Lone Tree Mine; 1997-05-05 to 2019-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Newmont Corporation → Newmont USA Limited; 1997-05-05 to 2019-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Nevada Gold Mines, LLC → Lone Tree Mine; 2019-07-01 to 2021-11-07; source msha-controller-operator-history
- **controller_controls_mine:** Barrick Nevada Holding LLC et al → Lone Tree Mine; 2019-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Barrick Nevada Holding LLC et al → Nevada Gold Mines, LLC; 2019-07-01 to 2021-11-07; source msha-controller-operator-history
- **controller_controls_operator:** Newmont USA Limited et al → Nevada Gold Mines, LLC; 2019-07-01 to 2021-11-07; source msha-controller-operator-history
- **operator_operates_mine:** Goldcorp DEE LLC → Lone Tree Mine; 2021-11-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** i-80 Gold Corp → Lone Tree Mine; 2021-11-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** i-80 Gold Corp → Goldcorp DEE LLC; 2021-11-08 to current/open; source msha-controller-operator-history