Kamennogorsk (Russian: Каменного́рск; known before 1948 by the Finnish name of Antrea (Russian: А́нтреа; Swedish: Sankt Andree)), is a town in Vyborgsky District of Leningrad Oblast, Russia, located on the Karelian Isthmus on the left bank of the Vuoksi River (Lake Ladoga's basin) 170 kilometers (110 mi) northwest of St. Petersburg.

Findings at the site included wooden and flint implements, polished instruments of shale, remains of net of nettle fibers, sixteen fishing floats of piny bark, thirty-one stone plummets, a long bone dagger, and remains of nets with a length of 27 meters (89 ft) and a width of up to 3 meters (9.8 ft).

[citation needed] The 1721 Treaty of Nystad, which concluded the war with Sweden, finalized the transfer of this part of Old Finland to Russia.

[2] Antrea, together with the rest of the Karelian Isthmus, was ceded by Finland to the Soviet Union by the Moscow Peace Treaty as a result of the Winter War.

In 1940, Antrea became a part of newly established Yaskinsky District with the administrative center in the work settlement of Yaski.

[12] The town's new name was due to the presence of crystalline deposit outcrops and a granite mine in the vicinity.

[12] Within the framework of administrative divisions, it is, together with twenty-nine rural localities, incorporated within Vyborgsky District as Kamennogorskoye Settlement Municipal Formation.