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 long, and has a drainage basin of 55,900 square kilometres. The river is rich with salmon, millions of which spawn yearly and whic…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 long, and has a drainage basin of 55,900 square kilometres. The river is rich with salmon, millions of which spawn yearly and which once supported the settlements of the native Itelmen.