Sparrevohn AFS was a continental defense radar station constructed to provide the United States Air Force early warning of an attack by the Soviet Union on Alaska.

The tramway cables frequently broke because of high winds and ice, and fog and the extreme cold made repairs hazardous.

In the spring of 1955, United States Army engineers constructed a 4,000 ft gravel airstrip 61°05′57″N 155°34′29″W / 61.09917°N 155.57472°W / 61.09917; -155.57472 (Sparrevohn LRRS Airport) adjacent to the base site, which allowed transports to bring in supplies, equipment and other material directly without the need for airdrops by parachute.

Two other buildings contained living quarters, work areas, and recreational facilities, plus opportunities for sports such as skiing, skating, horseshoes, and basketball.

It was inactivated in 1979, and replaced by an Alascom owned and operated satellite earth terminal as part of an Air Force plan to divest itself of the obsolete White Alice Communications System and transfer the responsibility to a commercial firm.

It was designed to transmit aircraft tracking data via satellite to the Alaskan NORAD Regional Operations Control Center (ROCC) at Elmendorf Air Force Base.

No longer needed, the 719th ACWS was inactivated on 1 November 1983 and the station re-designated as a Long Range Radar (LRR) Site.

In 1998 Pacific Air Forces initiated "Operation Clean Sweep", in which abandoned Cold War stations in Alaska were remediated and the land restored to its previous state.

Units: Assignments: This article incorporates public domain material from the Air Force Historical Research Agency