# Relationship history for MSHA mine 0405632

Current hierarchy: **Mike J  LaPaglia → North County Sand & Gravel Inc → Roadrunner 32**

- 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 J  LaPaglia → Roadrunner 32; 1986-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** North County Sand & Gravel Inc → Roadrunner 32; 2004-04-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mike J  LaPaglia → North County Sand & Gravel Inc; 2004-04-19 to current/open; source msha-controller-operator-history