Frosty Volcano, Stratovolcano in Alaska Peninsula, United States

Frosty Volcano is a stratovolcano on Alaska Peninsula rising to about 5,670 feet with two merged craters at its summit. The cone displays multiple layers of hardened lava and ash from different eruption phases.

Frosty Peak is the southern cone of the double-coned Frosty Volcano, which formed in the middle Pleistocene, before the Wisconsin Glaciation. Frosty Volcano sits on the northern flank of the older Morzhovoi Volcano, probably formed in the early to middle Pleistocene and later collapsed into a caldera. The highest remaining points of that caldera are North and South Walrus Peak. Frosty Peak's exact age is unknown, though it is probably middle to late Pleistocene.

The name Frosty Peak distinguishes the southern cone of the double-coned Frosty Volcano, whose northern neighbour is the older Morzhovoi Volcano. The two highest remnants of Morzhovoi's collapsed caldera are called North and South Walrus Peak, names a visitor will find on maps of the complex.

Frosty Peak lies at the southwest end of the Alaska Peninsula, and the nearest settlement is Cold Bay, from which access is by air. The summit stands at 6,299 ft (1,920 m), so plan for steep snow and ash slopes and for weather that changes quickly. No trails or facilities serve the cone; parties must be self-sufficient.

Frosty Peak is the southern cone of a double-coned volcano, and the whole complex sits on the northern flank of the older Morzhovoi Volcano, whose collapsed caldera left North and South Walrus Peak as its highest remnants.