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Shepard Glacier Glacier National Park. 1913. Photo by W.C. Alden, USGS. Photo by B. Reardon, USGS. 2005. - PowerPoint PPT Presentation
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Shepard GlacierGlacier National Park
2005Photo by B. Reardon, USGS
1913Photo by W.C. Alden, USGS