In which country are Tongjiang, Heilongjiang and Gao'an located?
Tongjiang, Heilongjiang Tongjiang () is a city of 160,000 in eastern Heilongjiang province, People's Republic of China, located at the confluence and on the right banks of the Songhua and Amur Rivers, the latter which marks the border with Russia. Administratively it is a county-level city of Jiamusi.
Xi'an District, Mudanjiang The district of Xi'an (西安区; pinyin : Xī'ān Qū) is an administrative subdivision of the province of Heilongjiang, China. It is under the jurisdiction of the prefecture-level city of Mudanjiang.