Billingsley, G.H., Goodwin, G., Nagorsen, S.E., Erdman, M.E., and Sherba, J.T., 2019, Geologic and related photographs of the Grand Canyon region (1967–2010): U.S. Geological Survey data release, accessed [Month Day, Year], at https://doi.org/10.5066/F7WS8SHW.
Summary
Aerial view north into Surprise Canyon, about 3 miles northeast of river mile 248.8. Muav Limestone (canyon bottom), Redwall Limestone (large gray cliff), Supai Group strata (reddish cliffs and slopes, upper right skyline), Permian strata (distant canyon rims), and Pliocene volcano of Mount Dellenbaugh (distant skyline).
Summary
Aerial view north into Surprise Canyon, about 3 miles northeast of river mile 248.8. Muav Limestone (canyon bottom), Redwall Limestone (large gray cliff), Supai Group strata (reddish cliffs and slopes, upper right skyline), Permian strata (distant canyon rims), and Pliocene volcano of Mount Dellenbaugh (distant skyline).