Reno Air Defense Sector, Air defense command center in Stead AFB, Nevada.

The Reno Air Defense Sector was an inactive U.S. Air Force command organization last assigned to the 28th Air Division at Stead Air Force Base, Nevada. Its SAGE Direction Center DC-16, at 39°39′04″N 119°53′00″W, ran on dual AN/FSQ-7 computers and directed radar squadrons at Burns, Baker, Winnemucca, Fallon and Tonopah.

The Reno Air Defense Sector was established in February 1959 and operated as part of the Semi Automatic Ground Environment system until its closure in April 1966. Its existence was tied to the expansion of air defense infrastructure during the Cold War.

Day-to-day operations at Stead Air Force Base kept interceptor crews ready through training missions and exercises with Strategic Air Command and other units simulating the interception of incoming enemy aircraft. The sector's radar squadrons at Burns, Baker, Winnemucca, Fallon and Tonopah fed the SAGE direction center that controlled these drills.

The facility was not designed for public visits and remains a former military site. To understand the grounds and the history of air defense in this region, visitors can explore nearby museums or memorials that document Cold War infrastructure.

The command center conducted specialized exercises to simulate aircraft interceptions while managing a vast network of early warning radar systems across four states. This combination of training missions and radar management made the facility a hub of air defense technology in the West.