# Relationship history for MSHA mine 1002157

Current hierarchy: **Steve L Ivie; Jeffrey D Lambert → Coeur d'Alene Mine Contracting LLC → Corby 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:** Silverstar Mining Co. → Corby Mine; 2008-05-29 to 2014-12-21; source msha-controller-operator-history
- **controller_controls_mine:** David P  Bond → Corby Mine; 2008-05-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David P  Bond → Silverstar Mining Co.; 2008-05-29 to 2014-12-21; source msha-controller-operator-history
- **operator_operates_mine:** Coeur d'Alene Mine Contracting LLC → Corby Mine; 2014-12-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jeffrey D Lambert et al → Corby Mine; 2014-12-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey D Lambert et al → Coeur d'Alene Mine Contracting LLC; 2014-12-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve L Ivie et al → Coeur d'Alene Mine Contracting LLC; 2014-12-22 to current/open; source msha-controller-operator-history