# Relationship history for MSHA mine 3610211

Current hierarchy: **Jason T Burke → M M Quarries Inc → English Flats**

- 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:** August F  DeLuca → English Flats; 2015-06-02 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Rock Ridge Stone → English Flats; 2017-03-30 to 2020-06-28; source msha-controller-operator-history
- **controller_controls_operator:** August F  DeLuca → Rock Ridge Stone; 2017-03-30 to 2020-06-28; source msha-controller-operator-history
- **operator_operates_mine:** M M Quarries Inc → English Flats; 2020-06-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jason T Burke → English Flats; 2020-06-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jason T Burke → M M Quarries Inc; 2020-06-29 to current/open; source msha-controller-operator-history