# Relationship history for MSHA mine 2003362

Current hierarchy: **Dana G  Hayes → Ashley Land Development Co Inc → Plant 4 HP62**

- 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

- **controller_controls_mine:** Dana G  Hayes → Plant 4 HP62; 2002-02-27 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Ashley Land Development Co Inc → Plant 4 HP62; 2006-05-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dana G  Hayes → Ashley Land Development Co Inc; 2006-05-26 to current/open; source msha-controller-operator-history