# Relationship history for MSHA mine 3200980

Current hierarchy: **Patrick  Burns; Peyton  Canary → Above All Sand And Aggregate → Pit 1- Above All Sand**

- 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:** Above All Sand And Aggregate → Pit 1- Above All Sand; 2012-06-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Peyton  Canary et al → Pit 1- Above All Sand; 2012-06-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Peyton  Canary et al → Above All Sand And Aggregate; 2012-06-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patrick  Burns et al → Above All Sand And Aggregate; 2012-06-19 to current/open; source msha-controller-operator-history