# Relationship history for MSHA mine 0901140

Current hierarchy: **HUBERT  SAXON → Goosepond Quarries → GOOSEPOND 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:** Goosepond Quarries → GOOSEPOND QUARRY; 2001-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** HUBERT  SAXON  ET AL → GOOSEPOND QUARRY; 2001-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** HUBERT  SAXON  ET AL → Goosepond Quarries; 2001-06-01 to current/open; source msha-controller-operator-history