# Relationship history for MSHA mine 1700660

Current hierarchy: **V B  Castellani; Kathleen  Herbert → Fletcher Granite Company Llc → Jonesboro Englishmens Bay 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: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Fletcher Granite Company Llc → Jonesboro Englishmens Bay Quarry; 1999-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** V B  Castellani  et al → Jonesboro Englishmens Bay Quarry; 1999-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** V B  Castellani  et al → Fletcher Granite Company Llc; 1999-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kathleen  Herbert et al → Fletcher Granite Company Llc; 1999-04-01 to current/open; source msha-controller-operator-history