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
View northeast from Tapeats Sandstone level toward Monadnock Amphitheater from Tonto Trail, just southwest of river mile 105.0. Tilted brown ridge across distant lower center of photograph is higher Neoproterozoic “island” of Shinumo Sandstone during Cambrian time.
Summary
View northeast from Tapeats Sandstone level toward Monadnock Amphitheater from Tonto Trail, just southwest of river mile 105.0. Tilted brown ridge across distant lower center of photograph is higher Neoproterozoic “island” of Shinumo Sandstone during Cambrian time.