There are 25 major glaciers on Mount Rainier and numerous unnamed snow or ice patches. Mount Rainier's glaciers are important indicators of climatic change and essential sources of water, supporting six major river systems. The Emmons Glacier has the largest area (4.3 square miles) and the Carbon Glacier has the lowest terminus altitude (3,600 feet) of all glaciers in the contiguous 48 states.
Mount Rainier Glaciers - Map and descriptions of some of Mount Rainier's major glaciers.
The Mount Rainier Interactive Glacier Webpages have additional information on the park's glaciers.
Glacier Research & Resources
Mount Rainier Glacier Monitoring 2009 (pdf)
Mount Rainier Glaciers - United States Geologic Survey (USGS)
Measuring Glaciers - Video produced by the North Coast and Cascades Science Learning Network featuring the scientists who study the glaciers of Mount Rainier.
Debris Flows from Glaciers