Shilka
a river of Eastern Siberia; rises in the Trans-Baikal region, among the Yablonoi mountains, and after a N. E. course of 260 miles falls into the Amur, a little beyond Ust Strelka. It is navigable for boats to the foot of the Yablonoi mountains, and is historically interesting as the "point of departure" for the Russians in their conquests on the Lower Amur.