# Relationship history for MSHA mine 2402695

Current hierarchy: **Roy D  Navolynski → Cabinet Stone of Montana Inc. → Pine Creek 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:** Cabinet Stone of Montana Inc. → Pine Creek Quarry; 2016-02-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Roy D  Navolynski → Pine Creek Quarry; 2016-02-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roy D  Navolynski → Cabinet Stone of Montana Inc.; 2016-02-16 to current/open; source msha-controller-operator-history