DESCRIPTION:
Mount Shasta Glaciers and Glaciations

Mount Shasta hosts five glaciers, including the Whitney Glacier, the largest in California.

The Sargents Ridge cone, oldest of the four major edifices that formed the present compound volcano after the major sector collapse, is younger than approximately 250,000 years, has undergone two major glaciations, and is exposed mainly on the south side of Mount Shasta. The next younger Misery Hill cone is younger than approximately 130,000 years, has been sculpted in one major glaciation, and forms much of the upper part of the mountain. The two younger cones are Holocene. Shastina, west of the cluster of other central vents, was formed mainly between 9,700 and 9,400 years; the Hotlum cone, which forms the summit and the north and northwest slopes of Shasta, may overlap Shastina in age, but most of the Hotlum cone is probably younger.

Mount Shasta hosts five glaciers, including the Whitney Glacier, the largest in California.

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