Ground Equipment Facility J-33 is a Federal Aviation Administration radar station of the Joint Surveillance System's Western Air Defense Sector with an Air Route Surveillance Radar. The facility was p
The FAA sign for the facility
Mount Tamalpais
Videos
Mount Tamalpais, known locally as Mount Tam, is a peak in Marin County, California, United States, often considered symbolic of Marin County. Much of Mount Tamalpais is protected within public lands s
Ground Equipment Facility J-33
…Surveillance Radar (ARSR-4). The facility was previously a USAF general surveillance radar station during the Cold War. The site is located on West Peak of Mount Tamalpais, in Marin County, California. The Cold War radar station near Mill Valley was one of twenty-eight stations approved by the United States Secretary of…
Mount Tamalpais, viewed from the southeast
Sunset behind Mount Tamalpais
The north side of Mount Tamalpais
Looking down at Richardson Bay over 2,300 feet (700 m) below