# Relationship history for MSHA mine 1100185

Current hierarchy: **Trovero Len → Rochelle Stone & Asphalt → Rochelle Quarry And Mill**

- 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:** Rochelle Stone & Asphalt Company → Rochelle Quarry And Mill; 1950-01-01 to 1985-11-04; source msha-controller-operator-history
- **controller_controls_mine:** Glaze Walter C → Rochelle Quarry And Mill; 1950-01-01 to 1985-11-04; source msha-controller-operator-history
- **controller_controls_operator:** Glaze Walter C → Rochelle Stone & Asphalt Company; 1950-01-01 to 1985-11-04; source msha-controller-operator-history
- **operator_operates_mine:** Rochelle Stone & Asphalt → Rochelle Quarry And Mill; 1985-11-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Trovero Len → Rochelle Quarry And Mill; 1985-11-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Trovero Len → Rochelle Stone & Asphalt; 1985-11-05 to current/open; source msha-controller-operator-history