After departing KNGP for the OSO transition, what altitude should you climb to?

The correct altitude to climb to after departing KNGP for the OSO transition is 1,000 feet MSL. This altitude is typically prescribed for initial departure procedures to ensure safe terrain clearance and to comply with standard air traffic regulations. Specifically, 1,000 feet MSL is often the altitude that allows for vertical separation from obstacles and provides a safe margin while transitioning to higher altitudes as directed by air traffic control or while following published departure routes.

In many cases, airports have specific departure procedures in place that dictate the appropriate altitude to maintain after takeoff, and those procedures are designed with safety in mind to mitigate the risks associated with low altitude flight.

While other altitude options may seem plausible, they may not align with the prescribed departure procedure directly associated with the OSO transition following a departure from KNGP.