Yosemite: Glacier Analysis

This most influential glacier also created extremely steep valley walls and hanging valleys. When this glacier retreated, it most likely left waterfalls and a large lake that provided the sediments that cover up the U-shaped valley. After that glacier there were about two more but they were not as large. The last glaciation of Yosemite occurred only about 20,000 years ago and was not very big. When this last glacier retreated, it left moraines, Lake Yosemite, and waterfalls such as Yosemite Falls, Bridalveil Fall, Vernal Fall, and Nevada Fall. All of these landforms remain except for Lake Yosemite which was filled with sediment to cover the U-shaped valley even more. Currently, the Merced River runs through the valley. During all of this glacial