evidence: The Sixty-Four Villages East of the River were a group of Manchu, Daur and Han-inhabited villages located on the left (north) bank of the Amur River (Heilong Jiang) opposite of Heihe, and on the east bank of Zeya River opposite of Blagoveshchensk.[1] The area totaled 3,600 square kilometers (1,400 sq mi).[2] [...] Further reading - Yang, Chuang; Gao, Fei; Feng (September 2006), "海兰泡和江东六十四屯惨案 (The Tragic Case of Blagoveshchensk/Hailanpao and the Sixty-Four Villages East of the River)", 百年中俄关系 (A Century of China-Russia Relations), Beijing: World Affairs Press, ISBN 7-5012-2876-0 External links - A map of Aihun Ting from a 1911 Heilongjiang atlas. This is the district centered on Aihun on the Chinese side of the river, but also including (according to the cartographer) the "Sixty-Four Villages" on the Russian side. (in Chinese)