# Relationship history for MSHA mine 3503546

Current hierarchy: **Mollie A  Anderson → Kent Creek Quarry → Kent Creek 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Box B Ent Inc → Kent Creek Quarry; 2001-10-23 to 2005-10-17; source msha-controller-operator-history
- **controller_controls_mine:** BILL C  GOODIN → Kent Creek Quarry; 2001-10-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** BILL C  GOODIN → Box B Ent Inc; 2001-10-23 to 2005-10-17; source msha-controller-operator-history
- **operator_operates_mine:** Kent Creek Quarry → Kent Creek Quarry; 2005-10-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mollie A  Anderson → Kent Creek Quarry; 2005-10-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mollie A  Anderson → Kent Creek Quarry; 2005-10-18 to current/open; source msha-controller-operator-history