# Relationship history for MSHA mine 1002331

Current hierarchy: **Larry  Peak → Peak Sand & Gravel, Inc. → Plant 6**

- 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:** Larry  Peak → Plant 6; 1993-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Peak Sand & Gravel, Inc. → Plant 6; 2021-05-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry  Peak → Peak Sand & Gravel, Inc.; 2021-05-27 to current/open; source msha-controller-operator-history