Sperry Glacier perimeter: 1966,1998, 2005, 2015.
By Northern Rocky Mountain Science Center
2017 (approx.)
![This image shows the perimeter of Sperry Glacier in Glacier National Park in 1966,1998, 2005, and 2015.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/Graphic_series_Sperry20150925_7x9.jpg?itok=YIGrhdk1)
Detailed Description
This image shows the perimeter of Sperry Glacier in Glacier National Park in 1966,1998, 2005, and 2015.
Sources/Usage
Public Domain.