View down the V-shaped canyon, showing Lower and Middle Tapeats Sandstone. Grand Canyon National Park, Mohave County, Arizona. 1923.
Dates
Date Taken
1923
Summary
Album caption and index card: View down the V-shaped canyon cut through Precambrian metamorphic rocks. The stratified formation capping the Precambrian rocks is the Lower and Middle Cambrian Tapeats Sandstone. The far skyline is defined by a formation of the Pennsylvanian and Permian Supai Group. The sand deposit in the foreground and the one across the river are both at the mouths of minor tributary canyons 360.7 kilometers below Lees Ferry. A flood line is apparent from stains on the rocks of the opposite shore and no plants are visible below that level. (Altitude 408 meters). Grand Canyon National Park. Mohave County, Arizona. October 2, 1923. (Photo no. 665 by E.C. LaRue). Portion published as Figure 67A in U.S. Geological Survey. [...]
Summary
Album caption and index card: View down the V-shaped canyon cut through Precambrian metamorphic rocks. The stratified formation capping the Precambrian rocks is the Lower and Middle Cambrian Tapeats Sandstone. The far skyline is defined by a formation of the Pennsylvanian and Permian Supai Group. The sand deposit in the foreground and the one across the river are both at the mouths of minor tributary canyons 360.7 kilometers below Lees Ferry. A flood line is apparent from stains on the rocks of the opposite shore and no plants are visible below that level. (Altitude 408 meters). Grand Canyon National Park. Mohave County, Arizona. October 2, 1923. (Photo no. 665 by E.C. LaRue).
Portion published as Figure 67A in U.S. Geological Survey. Professional Paper 1132. 1980.
Available in the U.S. Geological Survey, Denver Library Photographic Collection, Turner, R.M. Collection.
Available in the U.S. Geological Survey, Denver Library Photographic Collection, LaRue, E.C. Collection.
Rights
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