Narva River
The areas adjacent to the Narva River, including the town of Ivangorod, were assigned to Estonia in 1920, following the Estonian War of Independence and the Treaty of Tartu, signed on February 2, 1920. On November 24, 1944 this area was transferred to Leningrad Oblast and shared between Slantsevsky (south) and Kingiseppsky (north) Districts.