In the past, glaciers have covered more than one third of Earth's surface, and they continue to flow and to shape features in many places.
Past glaciers have created a variety of landforms that we see in National Parks today, such as:
Featured Video—Yosemite Glaciers
Yosemite National Park is famous for its spectacular glacially carved landscape. Although glaciers have come and gone many times in the past, there are still two active glaciers near Yosemite's highest peaks.
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