[4] California’s existing current glaciers are not remnants of the Pleistocene, but instead relatively young approximately 1,000 years in age.

Shasta by the United States Geological Survey (USGS) the rest being: Whitney, Hotlum, Bolam, Wintun, Konwakiton, and Watkins.

Shasta's southeast flank as the glacier advanced during its formation approximately 1000 years ago.

At the end of the canyon is approximately a 150 foot cascading waterfall called Mud Creek Falls.

[6] Mud Creek Falls is one of three cascading waterfalls over geomorphic hanging valley features on Mt.

[8] There are records of flood events that were devastating to the local towns as a result of the geologic hazards such as: Weed, McCloud, Dunsmuir, and Shasta.

One of these routes starts at the Crystal Creek trailhead, which leads up Sergeants Ridge where you can observe the Mud Creek Glacier on your trek to the summit crossing over lateral moraines and loose scree composed primarily of Intermediate volcanic igneous rock.