# Relationship history for MSHA mine 2602476

Current hierarchy: **Lewis Family Trust → Wiser Construction, Limited - Liability Company → Sand Pit #1**

- 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

- **controller_controls_mine:** Lewis Family Trust → Sand Pit #1; 1993-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Wiser Construction, Limited - Liability Company → Sand Pit #1; 2001-08-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lewis Family Trust → Wiser Construction, Limited - Liability Company; 2001-08-09 to current/open; source msha-controller-operator-history