# Relationship history for MSHA mine 1001611

Current hierarchy: **Wille Horst → International Oro-Fino Placer Inc → Oro-Fino Placer Incorporated**

- 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:** International Oro-Fino Placer Inc → Oro-Fino Placer Incorporated; 1983-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Wille Horst → Oro-Fino Placer Incorporated; 1983-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wille Horst → International Oro-Fino Placer Inc; 1983-06-01 to current/open; source msha-controller-operator-history