Muir Glacier taken 1941 and 2004

© by glaciologist William O. Field© by glaciologist William O. Field

Muir Glacier taken on August 13, 1941, by glaciologist William O. Field

 

 

© by geologist Bruce F. Molnia of the United States Geological Survey (USGS).© by geologist Bruce F. Molnia of the United States Geological Survey (USGS).

Muir Glacier taken from the same vantage on August 31, 2004, by geologist Bruce F. Molnia of the United States Geological Survey (USGS).