# Relationship history for MSHA mine 3503933

Current hierarchy: **Jon  Patterson → Patterson Investment Properties, LLC → Power River Rock**

- 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:** Patterson Investment Properties, LLC → Power River Rock; 2022-06-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jon  Patterson → Power River Rock; 2022-06-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jon  Patterson → Patterson Investment Properties, LLC; 2022-06-21 to current/open; source msha-controller-operator-history