- Source: Mengon (air base)
Mengon is an air base in Amur Oblast, Russia located 17 km southwest of Elban. Its purpose is unknown; it may be a diversion or dispersal airbase for bombers from Zavitinsk (air base) or Ukrainka (air base). It has a very long runway and large tarmac. Long runway was designated as a "eastern alternate airport" for landing the Buran spacecraft.
References
RussianAirFields.com