# Relationship history for MSHA mine 5001308

Current hierarchy: **Black John S → Goldbelt Inc → Lemon 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Godfrey Redi-Mix Sand & Gravel → Lemon Creek Quarry; 1980-02-01 to 1988-07-14; source msha-controller-operator-history
- **controller_controls_mine:** Phil  Godfrey → Lemon Creek Quarry; 1980-02-01 to 1988-07-14; source msha-controller-operator-history
- **controller_controls_operator:** Phil  Godfrey → Godfrey Redi-Mix Sand & Gravel; 1980-02-01 to 1988-07-14; source msha-controller-operator-history
- **operator_operates_mine:** Goldbelt Inc → Lemon Creek Quarry; 1988-07-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Black John S → Lemon Creek Quarry; 1988-07-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Black John S → Goldbelt Inc; 1988-07-15 to current/open; source msha-controller-operator-history