# Relationship history for MSHA mine 1002119

Current hierarchy: **Brian  Crandall → Idaho Aggregate, LLC → Idaho Rock & Sand LLC**

- 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:** Idaho Rock and Sand LLC → Idaho Rock & Sand LLC; 2007-06-06 to 2022-06-09; source msha-controller-operator-history
- **controller_controls_mine:** Michael R  Wood → Idaho Rock & Sand LLC; 2007-06-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael R  Wood → Idaho Rock and Sand LLC; 2007-06-06 to 2022-06-09; source msha-controller-operator-history
- **operator_operates_mine:** Idaho Aggregate, LLC → Idaho Rock & Sand LLC; 2022-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Brian  Crandall → Idaho Rock & Sand LLC; 2022-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brian  Crandall → Idaho Aggregate, LLC; 2022-06-10 to current/open; source msha-controller-operator-history