# Relationship history for MSHA mine 1401790

Current hierarchy: **Lon  White; Gary  Falk → White's Construction Company LLC → North 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:** White's Construction Company LLC → North Pit; 2017-07-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gary  Falk et al → North Pit; 2017-07-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary  Falk et al → White's Construction Company LLC; 2017-07-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lon  White et al → White's Construction Company LLC; 2017-07-27 to current/open; source msha-controller-operator-history