BEFORE: Take a look at Agassiz Glacier, in this photograph taken in 1913, near Boulder Pass, Glacier National Park. NEXT IMAGE: Agassiz Glacier (2005)
AFTER: Compare it to this 2005 photograph of Agassiz Glacier taken from the same location (near Boulder Pass, Glacier National Park)
BEFORE: At the time the 1914 photograph was taken Blackfoot Glacier encompassed the current Jackson Glacier. NEXT IMAGE: Blackfoot-Jackson Glacier Complex (2001)
AFTER: The 2001 photograph shows that each glacier has receded to the confines of its own cirque.
BEFORE: Shown above is a picture of Boulder Glacier, taken near Boulder Pass, Glacier National Park, in 1932. The foreground rocks provided an excellent reference point to re-photograph the historic photo. NEXT IMAGE: Boulder Glacier (2005)
AFTER: Boulder Glacier photographed from nearly 73 years later from the same place as the 1932 photo. The foreground rocks provided an excellent reference point to re-photograph the historic photo.
BEFORE: View of Chaney Glacier terminus, Glacier National Park, in 1911. NEXT IMAGE: Chaney Glacier Terminus (2005)
AFTER: View of Chaney Glacier terminus, Glacier National Park, in 2005.
BEFORE: 1902 photograph of Grant Glacier from Grant Ridge, Flathead National Forest, Montana. NEXT IMAGE: Grant Glacier (1998)
AFTER: 1998 Photograph of Grant Glacier from Grant Ridge, Flathead National Forest, Montana.
BEFORE: An Oblique view of Grinnell Glacier is taken from the summit of Mount Gould, Glacier National Park in 1938. The relative sensitivity of glaciers to climate change is illustrated by the dramatic recession of Grinnell Glacier while surrounding vegetation patterns remain stable. NEXT IMAGE: Grinnell Glacier from Mt. Gould (2005)
AFTER: The lake continues to enlarge as the glacier recedes. Icebergs can be seen floating in Upper Grinnell Lake in this photo taken in 2005.
BEFORE: Grinnell Glacier taken from the Grinnell Glacier Overlook off the Highline Trail, Glacier National Park. The view of Grinnell Glacier taken circa 1940 shows the early formation of Upper Grinnell Lake, a pro-glacier lake visible at the terminus of the glacier. NEXT IMAGE: Grinnell Glacier from Overlook (2004)
AFTER: The 2004 photo shows a dramatic increase in the size of the lake as a result of melting ice.
BEFORE: Sexton Glacier photographed in 1901 from bench below Siyeh Pass, Glacier National Park. NEXT IMAGE: Sexton Glacier (1998)
AFTER: Sexton Glacier photographed in 1998 from bench below Siyeh Pass, Glacier National Park.
BEFORE: The picture above, photographed in 1913, shows Shepard Glacier from Pyramid Peak, Glacier National Park. NEXT IMAGE: Shepard Glacier (2005)
AFTER: Shepard Glacier from Pyramid Peak, Glacier National Park, photographed in 2005.
BEFORE: Photograph of the Swiftcurrent Glacier, taken in 1900 from the Swiftcurrent trail, Glacier National Park. NEXT IMAGE: Swiftcurrent Glacier (1998)
AFTER: Photograph of the Swiftcurrent Glacier, taken in 1988 from the Swiftcurrent trail, Glacier National Park.
