The Kamchatka is the longest river in Kamchatka peninsula, located in Kamchatka Krai in the Russian Far East. It flows into the Pacific Ocean at the town Ust-Kamchatsk, on the east coast of Kamchatka. It is 758 kilometres (471 mi) long, and has a drainage basin of 55,900 square kilometres (21,600 sq mi). The river is rich with salmon, millions of which spawn yearly and which once supported the settlements of the native Itelmen.