General Information:

  • Mount Rainier has the largest number of glaciers on a single peak anywhere in the contiguous United States. The 25 glaciers have a combined area of 90 square kilometers (35 square miles), which means that almost 10% of the park is covered by glacier (c).
  • The combined volume of the glaciers is estimated to be 4.2 cubic kilometers (1.0 cubic miles) (c).

About this map:

This map shows the extent of Mount Rainier's glaciers in 1994. It was produced with digital data produced by T. Nylen (Department of Geology - Portland State University).

To see changes in the changes in the glaciers from 20,000+ years ago to the present select "Timeline" from the list at the top of this page.

To get information on individual glaciers click on its name on the map. Information is only available for those glaciers that have a red dot next to its name.