Wikipedia
Siversky is an urban locality (an urban-type settlement) in Gatchinsky District of Leningrad Oblast, Russia, located on the bank of the Oredezh River. Population:
According to locals, Siversky is one of the only places in the world where the banks of river are lined with red sand, suggesting an iron presence in the Oredezh River or surrounding soil.
Siversky is an air base in Leningrad Oblast, Russia located 2 km northwest of Siversky. It is a small airfield 65 km south of Saint Petersburg (Leningrad) and is home to the 67th Bomber Aviation Regiment, flying Su-24 aircraft. According to Natural Resources Defense Council it has served as a nuclear bomber base. A United States joint military inspection was conducted at the base on February 11, 1992, which confirmed a Su-24 presence.