Today is

Glaciers

All images and text courtesy U.S. Geological Survey and Glacier National Park.

<< 6/12 < > As the glacier flows downhill, it descends to warmer zones where the snow melts from year to year. The boundary where snow melting equals snow accumulation is called the annual snowline. The snowline varies from year to year depending upon the amount of snowfall (precipitation) and temperature.

     To the Top