Ussuri
It rises in the Sikhote-Alin mountain range , flowing north and forming part of the Sino-Russian border ( which is based on the Sino-Russian Convention of Peking of 1860 ) until it joins the Amur as a tributary to it near Khabarovsk . 
<triplet> Khabarovsk <subj> Amur <obj> located in or next to body of water