
Ascent Passport.
- Ascent area: Kamchatka. Avachinskaya group of volcanoes.
- Peak name: Avachinsky volcano 2741 m. SW slope.
- Proposed category of difficulty: 1B (Winter).
- Route type: combined.
- Elevation gain: 1850 m.
- Route length: 6 km.
- Average slope: 30°.
- Total hours: 6 hours.
- Leader: E. Lenz.
- Ascent date: 1824.
- Description compiled by: A. Bichenko.
Map of the Avachinskaya Sopka volcano 2741 m ascent area.
Scale 1:2000

- Base camp
- Ascent route
Photopanorama of the Avachinsky volcano ascent area.

№ 4 — 1B category of difficulty, (Winter) SW slope E. Lenz, 1842. № 5 — 1B category of difficulty, SE slope V. Arsenyev, 1923.
Brief overview of the Avachinsky volcano area. 2741 m.
Avachinsky volcano is located 30 km from Petropavlovsk-Kamchatsky and is the most popular training site for Kamchatka climbers. The proposed route to Avachinsky volcano via the Western slope in winter corresponds to 1B category of difficulty. It was first ascended by Erlich Lenz in 1842. To this day, it has not been included in the classifier of mountaineering routes, as the route description was not compiled. However, this ascent is recorded in the archives of Kamchatka's history. We propose that this route via the Western slope be included in the classifier under the name E. Lenz as 1B category of difficulty.
Technical description of the route.
The route starts from the Avachinsky refuge, elevation 900 m. From the refuge, approach the beginning of the western ridge via a wide firn plateau — 1 hour. Ascend the wide ridge to the edge of the "Vоротник" (Collar), elevation 2100 m. Time taken for this section is 3 hours. From the "Vоротник" (2100 m), traverse it with a slight loss of elevation, and approach the main cone. The cone is composed of layers of coarse and fine slag. In winter, the upper part of the cone is covered with ice. The average slope is 35°, with a steepness increase to 45° in the last 100 meters. Time taken to ascend the cone is 2 hours. The entire route is traversed in crampons, with a rope exit to the summit. The highest point of the crater is on the northern rim, and the crater is filled with solidified lava (1991 eruption). Active fumarolic and sulfur fields are located on the southwestern side of the crater. Total ascent time is 5–6 hours. Descent is via the ascent route.


