Science Center Objects

This pairing of photos from the flank of Boulder Glacier reveals a dramatic change in the 56 years between the photos. The repeat photograph was taken by Glacier National Park ranger Jerry DeSanto. Pack trips to Boulder Glacier used to include exploration of the glacier’s ice cave. The cave has long since disappeared as the glacier receded beyond this point. 

Image Use

Most of the repeat photography images available on this website are in the public domain and may be reproduced without permission.  Images with restrictions are noted below the downloadable image.

Please respect the photographer: When using these photographs, please credit the photographer and source (eg. T.J. Hileman, courtesy of Glacier National Park Archives). The paired images below are examples of proper crediting for each photo.

To download images, select the Multimedia tab.