# Relationship history for MSHA mine 3607572

Current hierarchy: **Louis  DeNaples Jr; Dominic  DeNaples → De Naples Auto Parts Inc → Keystone Industrial Track**

- 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:** De Naples Auto Parts Inc → Keystone Industrial Track; 1984-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Dominic  DeNaples et al → Keystone Industrial Track; 1984-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dominic  DeNaples et al → De Naples Auto Parts Inc; 1984-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Louis  DeNaples Jr et al → De Naples Auto Parts Inc; 1984-04-01 to current/open; source msha-controller-operator-history