The 1913 image of Sperry Glacier shows the thickness of the glacial ice that once covered the Sperry basin. Now, at approximately 1/3 of it's maximum area, Sperry Glacier continues to recede at a rapid rate. It is one of the glaciers that USGS scientists are monitoring as a benchmark glacier.
Sources/Usage: Public Domain.
Sources/Usage: Public Domain.
Sources/Usage: Public Domain.
- Overview
The 1913 image of Sperry Glacier shows the thickness of the glacial ice that once covered the Sperry basin. Now, at approximately 1/3 of it's maximum area, Sperry Glacier continues to recede at a rapid rate. It is one of the glaciers that USGS scientists are monitoring as a benchmark glacier.
Sources/Usage: Public Domain.Sperry Glacier Panorama 1913. Public domain
Sources/Usage: Public Domain.Sperry Glacier Panorama 2008 in black and white. Public domain
Sources/Usage: Public Domain.Sperry Glacier Panorama 2008 in color. Public domain