Repeat photos of the Colorado River
Detailed Description
Taken 94 years apart, these side by side photographs of river mile 91.7 (looking upstream) show the increase in vegetation along the Colorado River corridor after the opening of the Glen Canyon Dam in 1963. F.C. La Rue (1923 photo) on left; H.C. Fairley and A.H. Fairley (2017 USGS photo) on right.
Sources/Usage
Public Domain.