# Relationship history for MSHA mine 2601656

Current hierarchy: **Erickson Einar C → Silver Connor Mines Inc → Silver Connor**

- 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

- **operator_operates_mine:** Silver Connor Mines Inc → Silver Connor; 1980-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Erickson Einar C → Silver Connor; 1980-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Erickson Einar C → Silver Connor Mines Inc; 1980-05-01 to current/open; source msha-controller-operator-history