At the time this historic photograph was taken in 1911, Blackfoot Glacier encompassed the current Jackson Glacier. By 1939, Blackfoot Glacier's recession had resulted in two distinct glaciers, Jackson and Blackfoot. This photo pair shows glacial recession and successive vegetation growth along Jackson Glacier's terminus.

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- Overview
At the time this historic photograph was taken in 1911, Blackfoot Glacier encompassed the current Jackson Glacier. By 1939, Blackfoot Glacier's recession had resulted in two distinct glaciers, Jackson and Blackfoot. This photo pair shows glacial recession and successive vegetation growth along Jackson Glacier's terminus.
Sources/Usage: Some content may have restrictions. Visit Media to see details.Jackson Glacier 1911. Images that were acquired from the University of Montana may be protected by copyright. Permission may be required for use. View the image's collection record for more info and download options: http://content.lib.umt.edu/cdm/singleitem/collection/pharchives/id/3262… ID: 486.IX.068.050
Jackson Glacier 2009.Public domain