# Relationship history for MSHA mine 0801472

Current hierarchy: **Kaleb  West → Desoto Sand and Fill, Inc. → DSF Bishop Mine**

- 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:** Desoto Sand and Fill, Inc. → DSF Bishop Mine; 2026-03-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kaleb  West → DSF Bishop Mine; 2026-03-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kaleb  West → Desoto Sand and Fill, Inc.; 2026-03-24 to current/open; source msha-controller-operator-history