# Relationship history for MSHA mine 4503422

Current hierarchy: **Frank  Scarsella; Scott  Corliss → Sunset Quarry LLC → Sunset Quarry**

- 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:** C Wyss & Son Llc → Sunset Quarry; 2000-02-01 to 2004-11-15; source msha-controller-operator-history
- **controller_controls_mine:** Clarence  Wyss et al → Sunset Quarry; 2000-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clarence  Wyss et al → C Wyss & Son Llc; 2000-02-01 to 2004-11-15; source msha-controller-operator-history
- **controller_controls_operator:** Jeff  Wyss et al → C Wyss & Son Llc; 2000-02-01 to 2004-11-15; source msha-controller-operator-history
- **operator_operates_mine:** Sunset Quarry LLC → Sunset Quarry; 2004-11-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Scott  Corliss et al → Sunset Quarry; 2004-11-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott  Corliss et al → Sunset Quarry LLC; 2004-11-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Frank  Scarsella et al → Sunset Quarry LLC; 2004-11-16 to current/open; source msha-controller-operator-history