Historical Photographs (continued) -

While working on my Zion Book, I came across the National Park Service Archive of Historical Photos. Here are some I found interesting, from Zion.

Zion National Park, Utah. Entrenched meanders of the Virgin River at the upper end of Zion Canyon, Temple of Sinawava. The walls of Navajo Sandstone rise 1,800 to 2,200 feet above the river. Photo by Army Air Corps. Figure 94, U.S. Geological Survey Professional Paper 220. Professional Paper-0220 Gregory, H.E. 1950

Zion National Park, Utah. Erosion surface developed on Carmel formation. Flatlands (upper middle) are in process of dissection by Virgin River (bottom center) and its tributaries. The view includes 14 canyons, each as much as 800 feet deep. Washington County, Utah.n.d. (Photo by National Park Service) (Aerial photo) Published as figure 95 in U.S. Geological Survey. Professional paper 220. 1950. Professional Paper-0220

Zion National Park, Utah. South entrance to The Narrows of the Virgin River. The stream flows between walls 1,500 to 1,700 feet high in a channel 20 to 50 feet wide. n.d. Figure 101, U.S. Geological Survey Professional Paper 220. Digital File:ghe01279

Zion National Park, Utah. Ephemeral stream, a tributary to Clear Creek, showing conditions favorable for making pot holes. n.d. Photo by U.S. National Park Service. Figure 126, U.S. Geological Survey Professional Paper 220. Digital File:ghe01280