# Relationship history for MSHA mine 2103766

Current hierarchy: **Ben  Dickinson → Red Top Construction, LLC → Crushing Spread**

- 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:** Red Top Construction → Crushing Spread; 2012-05-05 to 2013-05-23; source msha-controller-operator-history
- **controller_controls_mine:** Ben  Dickinson → Crushing Spread; 2012-05-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ben  Dickinson → Red Top Construction; 2012-05-05 to 2013-05-23; source msha-controller-operator-history
- **operator_operates_mine:** Red Top Construction, LLC → Crushing Spread; 2013-05-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ben  Dickinson → Crushing Spread; 2013-05-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ben  Dickinson → Red Top Construction, LLC; 2013-05-24 to current/open; source msha-controller-operator-history