# Relationship history for MSHA mine 3304661

Current hierarchy: **Ed I  Miller → E. Miller Mining → E. Miller Mining**

- 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:** E. Miller Mining → E. Miller Mining; 2010-11-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ed I  Miller → E. Miller Mining; 2010-11-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ed I  Miller → E. Miller Mining; 2010-11-22 to current/open; source msha-controller-operator-history