Alchan

The Alchan flows west from the forested slopes of the Sikhote-Alin to join the Bikin, itself a tributary of the Ussuri. It is the Bikin's largest tributary, draining a country of wooded ridges and river valleys. Heavy summer rains can swell its waters, while the long winter brings ice and snow to the basin. Through the Bikin and Ussuri, the Alchan's waters eventually reach the Amur and the sea.