evidence: Proper noun [edit]Heixiazi - Synonym of Bolshoy Ussuriysky Island: the Mandarin Chinese-derived name. [...] - The major obstacle to a border settlement is the status of Heixiazi, a 330-square kilometer island at the confluence of the Amur and Ussuri rivers. The island is claimed by the Chinese but controlled by the USSR. Because Heixiazi overlooks Khabarovsk as well as the point where the Trans-Siberian Railway crosses the Amur River, the Soviets are reluctant to give it up. [...] - This resurgence in the two nations’ bilateral trade caused Russian President Medvedev in 2011 to project that Sino-Russian trade could reach US$100 billion in only three to five years! (Xinhua News Agency 2011d). It has also allowed both countries to push past their previous differences in search of profit, such as China and Russia’s recent announcement of a joint venture to co-develop the border island of Heixiazi into a tourist resort (World News Connection 2011a).