Korsakov (air base)
Korsakov was a Soviet Naval Aviation reserve airfield on Sakhalin, Russia located northeast of Korsakov. It was first listed by US intelligence in 1964, when significant construction of the runway was underway. Due to the long runway length it was likely intended for dispersal of Tupolev Tu-16R medium reconnaissance jets, and may have been built to meet Defense Minister Rodion Malinovsky's directive that every American aircraft carrier between Midway Island and the Kuril Ridge be photographed by Soviet Tupolev Tu-16R reconnaissance aircraft.
The airfield appears to have been abandoned after the Cold War, and satellite imagery shows much of the concrete has been reclaimed.