Koryaksky is a tall conical stratovolcano located NW of Petropavlovsk-Kamchatskiy. The volcano is considered one of the most beautiful in Kamchatka. It can be climbed in 4-8 day trips from Petropavlovsk. Crampons and ice axe are needed for this snow climb, as well as experience in mountaineering. There are two glaciers on the eastern slope; 4.2 and 1 km in length.
Koryaksky volcano is grooved by deep radial ravines. The slope of the lower cone is 20 deg rising to a maximum of 30-35 deg in the upper cone. The absolute height of the volcano is 3456 m, and a relative height of 2300 m in the north and 3300 m in the south.