# Relationship history for MSHA mine 3609722

Current hierarchy: **Rosa  Guaman → Guaman Stone Quarry, LLC → Guaman Stone**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Harold E. Wheeland, Jr. → Guaman Stone; 2009-03-18 to 2024-03-17; source msha-controller-operator-history
- **controller_controls_mine:** Harold E  Wheeland Jr → Guaman Stone; 2009-03-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harold E  Wheeland Jr → Harold E. Wheeland, Jr.; 2009-03-18 to 2024-03-17; source msha-controller-operator-history
- **operator_operates_mine:** Guaman Stone Quarry, LLC → Guaman Stone; 2024-03-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rosa  Guaman → Guaman Stone; 2024-03-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rosa  Guaman → Guaman Stone Quarry, LLC; 2024-03-18 to current/open; source msha-controller-operator-history