amazing collection (the largest too) of repeat photos. The collection preserves thousands of photos, from desert landscapes to mountain views, to help understand the changing effects of climate in different environments. Visit Wired to see the full post, or hop over to USGS to learn more!
Huerfano Butte, Santa Rita Experimental Range, Southern Arizona
San Carlos River near Peridot, Southern Arizona
Muir and Riggs Glaciers, Muir Inlet, Alaska
Cliff Palace, Mesa Verde National Park, Colorado
Boundary Monument 75E, Southeastern Arizona
Shepard Glacier, Glacier National Park, Montana
Photos Courtesy of Wired