Sperry Glacier margins 1998, 2005, and 2015.
By Northern Rocky Mountain Science Center
2017 (approx.)
![Sperry Glacier margins 1998, 2005, and 2015.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/Sperry_20150925c_0.jpg?itok=BSUHV2Id)
Detailed Description
Sperry Glacier margins 1998, 2005, and 2015.
Sources/Usage
Public Domain.
Sperry Glacier margins 1998, 2005, and 2015.
Public Domain.