The Eastern Range stretches roughly from NNE to SSW for along the eastern part of the peninsula between the southern
Karaginsky Gulf at the northern end and
Avacha Bay at the southern. The highest point is
Klyuchevskaya Sopka, a -high
stratovolcano. The range is made up of a number of separate ranges having steep western slopes and more gentle eastern ones. The central Kamchatka Depression, with the valley of the
Kamchatka River, separates the Eastern Range from the Middle Range of the peninsula to the west. The main part of the Eastern Range is part of the East Kamchatka Anticline dating back to the
Cenozoic orogeny, composed of
Upper Cretaceous sediments and
volcanic rocks, such as
basalt and
tuff. Some geographic works include the
Kluchevskaya group of volcanoes, highest point , as well as the
Gamchen Range, highest point , as part of the Eastern Range. The first is located to the west of the Kumroch Range and the other to the east of the Tumrok Range. The Eastern Kamchatka zone of recent and ongoing
volcanic eruptions is around the area where the Valagin and the Tumrok ranges meet, with a number of active volcanoes, such as the Kizimen,
Shiveluch, and
Karymskaya Sopka. ==Flora==