4. Chotchat Main via the Northeast Buttress - East Ridge

(combined route, category 2A difficulty, fig. 1, 2). From the Ullutau alpine camp (group of 4-20 people) cross the Adyrsu River by bridge, turn right and down, and follow the trail to reach the Koyavgan stream, cross it, and follow the right bank trail, passing through green areas, to approach the right-bank moraine. Along the moraine, bypassing the tongue of the Koyavgan glacier and its broken part on the right, reach the upper plateau of the glacier. From here, traverse the glacier up and to the left (closed crevices) and ascend the steep ice-snow slope to the saddle (cornice) of the long East Ridge of the large Black pillar standing in the Adylsky Ridge between the peaks: