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North Cascades National Park Service Complex
Comparative Aerial Photos and Figures
This section features three pairs of North Cascades photographs. Each photographic pair consists of a mid-20th century and an early-21st century photograph taken from approximately the same location. The 1967 and 1958 images were photographed by Austin Post as part of a comprehensive glacier inventory. The corresponding 21st century images were taken by John Scurlock, a local North Cascades pilot and photographer. The comparative photographs clearly show substantial changes in glacier area, and thickness.
 
Figure 17
Figure 17. View to the west of Inspiration Glacier in fall 1967 (left, by Post) and in fall 2005 (right, by Scurlock). Note the ice loss on the North Lobe of Inspiration Glacier.
 
Figure 18
Figure 18. View to the west of Silver Glacier in 1958 (left, by Post) and 2006 (right, by Scurlock). A map made in 1913 shows that the glacier covered the lake.
 
Figure 19
Figure 19. View to the south of South Cascade Glacier in 1958 (left, by Post) and 2003 (right, by Scurlock).
 
Figure 20 and 21
Figure 21 - Thunder Creek Watershed and Figure 22 - Klawatti Glacier
Did You Know?  

Did You Know?
North Cascades National Park provides excellent opportunities for scientific research in a wide range of topics. In Newhalem, a Research Center and Artist-in- Residence program offer short term residencies in the North Cascades.

Last Updated: April 09, 2007 at 19:35 EST