# Relationship history for MSHA mine 2101706

Current hierarchy: **Bradley M  Braaten → Braaten Aggregate, Inc. → Crusher**

- 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:** Cary Dray Line → Crusher; 1950-01-01 to 1979-04-30; source msha-controller-operator-history
- **controller_controls_mine:** D K  Cary → Crusher; 1950-01-01 to 1979-04-30; source msha-controller-operator-history
- **controller_controls_operator:** D K  Cary → Cary Dray Line; 1950-01-01 to 1979-04-30; source msha-controller-operator-history
- **operator_operates_mine:** Braaten Aggregate, Inc. → Crusher; 1979-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bradley M  Braaten → Crusher; 1979-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bradley M  Braaten → Braaten Aggregate, Inc.; 1979-05-01 to current/open; source msha-controller-operator-history