# Relationship history for MSHA mine 2302554

Current hierarchy: **Mike  Trager → Trager Limestone, LLC → G2 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

- **controller_controls_mine:** Mike  Trager → G2 Quarry; 1993-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Trager Limestone, LLC → G2 Quarry; 2021-04-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mike  Trager → Trager Limestone, LLC; 2021-04-13 to current/open; source msha-controller-operator-history