# Relationship history for MSHA mine 1302427

Current hierarchy: **Wayne F  Pickhinke → Early Aggregates → Plant #1**

- 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:** Early Aggregates → Plant #1; 2011-09-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Wayne F  Pickhinke → Plant #1; 2011-09-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wayne F  Pickhinke → Early Aggregates; 2011-09-13 to current/open; source msha-controller-operator-history