# Relationship history for MSHA mine 2602904

Current hierarchy: **Wes  Adams → Spec Aggregates → Eldorado**

- 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:** Wes  Adams → Eldorado; 2018-10-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Spec Aggregates → Eldorado; 2024-05-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wes  Adams → Spec Aggregates; 2024-05-03 to current/open; source msha-controller-operator-history