# Relationship history for MSHA mine 4104616

Current hierarchy: **Zachary  Tausch; Vernon  Tausch → Custom Crushed Stone Inc → Custom Crushed Stone #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

- **operator_operates_mine:** Custom Crushed Stone Inc → Custom Crushed Stone #1; 2006-08-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Zachary  Tausch  et al → Custom Crushed Stone #1; 2006-08-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Zachary  Tausch  et al → Custom Crushed Stone Inc; 2006-08-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vernon  Tausch  et al → Custom Crushed Stone Inc; 2006-08-22 to current/open; source msha-controller-operator-history