# Relationship history for MSHA mine 2003583

Current hierarchy: **Steven J Miller → Stone Mill Properties LLC → Onaway**

- 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:** Stone Mill Properties LLC → Onaway; 2019-08-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Steven J Miller → Onaway; 2019-08-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steven J Miller → Stone Mill Properties LLC; 2019-08-23 to current/open; source msha-controller-operator-history