Geosphere; February 2008; v. 4; no. 1;
p. 183-206; DOI: 10.1130/GES00133.1
© Geological Society of America
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Figure 1. True color Landsat image of the Grand Canyon showing the location of the Uinkaret volcanic field, Toroweap fault, Hurricane fault, and the Grand Wash Cliffs. Basalt remnants are present from river mile 177 to 254 (measured downstream from Lee's Ferry). Spencer Canyon is located at river mile 246. Major Quaternary faults, including the Toroweap and Hurricane faults, are shown in red (from U.S. Geological Survey and Arizona Geological Survey, 2006).
Copyright © 2008 by Geological Society of America