Sosnovy Bor is a town in Leningrad Oblast, Russia, situated on the Koporye Bay of the Gulf of Finland, 81 kilometers (50 mi) west of St. Petersburg. Population: 65,788 (2010 Census); 66,132 (2002 Census); 55,800 (1989 Census).
Due to high concentration of classified research facilities, nuclear energy industries, and military installations, access to Sosnovy Bor is only by special permit (except for people living there). In reality this regulation is not strict - permits are checked only on one of the roads entering the city from the east. No restrictions are enforced on other roads and on the local trains.