Kamenny Ruchey (also Mongokhto, Alekseyevka, and Mongohto) (Russian: Монгохто, Каменный Ручей) (ICAO: UHKG) is an air base in Russia located 29 km north of Sovetskaya Gavan.

[1] Located just north of Vanino, it is a major military naval airfield that has 63 hardened areas.

The airfield is designated by CAICA as Kamenny Ruchey, but Russian topographic maps indicate the nearby settlement northeast of the airfield is Mongokhto, which is also synonymous with the military base.

During the 1970s it was one of the largest bases in the Soviet Far East, with 8000 residents in Mongokhto.

A 1971 CIA analysis indicated that the base had two regiments flying Tupolev Tu-16 Badger aircraft[3] which were equipped with K-10S Kipper and Kh-22 Kitchen Anti-ship missiles.