Lake Vivi (Russian language: О́зеро Виви) is a lake on the Vivi River in the Putorana Plateau, Evenkia in Siberia, Russia. It is a typical river lake, while the length is ca. 86 km, the width does not exceed 5 km, and the area of the lake is 229 km². It has no permanent settlements along its banks. It is famous as the geographical center of Russia. The spot is marked by a 7-metre monument erected in August 1992. Nearby is an even higher cross dedicated to St.