How glaciers move
Most glaciers move too slowly for us to see, and different parts move at different rates. Studies and monitoring have revealed, however, that surging glaciers are fairly common. Some 204 glaciers have been identified in western North America alone.

Typically, a glacier’s surface is far from being a featureless white expanse of snow, although this is sometimes the case. There are many surface features related to the movement of glaciers. Select experiments, features, or behaviors to learn more.