# Relationship history for MSHA mine 5001829

Current hierarchy: **Donald F  Wright; Adam J  Wright → Nechesta General → Nechesta Pit**

- 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:** Nechesta General → Nechesta Pit; 2005-12-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Adam J  Wright et al → Nechesta Pit; 2005-12-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Adam J  Wright et al → Nechesta General; 2005-12-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donald F  Wright et al → Nechesta General; 2005-12-06 to current/open; source msha-controller-operator-history