# Relationship history for MSHA mine 2402290

Current hierarchy: **Beau  Dicken → Dicken Stone → Hwy 28 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:** Dicken Stone → Hwy 28 Mine; 2002-07-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Beau  Dicken → Hwy 28 Mine; 2002-07-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Beau  Dicken → Dicken Stone; 2002-07-08 to current/open; source msha-controller-operator-history