# Relationship history for MSHA mine 4609661

Current hierarchy: **Mark  LaVerghetta → Management Consulting Services → Eagle**

- 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:** Mark  LaVerghetta → Eagle; 2021-03-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Management Consulting Services → Eagle; 2024-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mark  LaVerghetta → Management Consulting Services; 2024-01-01 to current/open; source msha-controller-operator-history