Naval Base Coronado (NBC) is a consolidated Navy installation encompassing eight military facilities in southern California, stretching from San Clemente Island, located 70 miles west of San Diego, to Mountain Warfare Training Camp Michael Monsoor and Camp Morena, located 60 miles east of San Diego.

These eight facilities encompass more than 57,000 acres (230 km2) and make NBC the largest command in the southwest region of the U.S.

[citation needed] Download coordinates as: A barracks building on the Naval Amphibious Base resembles a swastika symbol from the air.

This was realized shortly after the 1967 groundbreaking, but no action was taken as the building was in a no-fly zone that would not be seen by passengers of commercial airlines.

In 2007, members of the public noticed the shape in aerial views of Google Earth and the Navy announced plans to spend $600,000 on “camouflage” landscaping and rooftop adjustments.