Conor Watkins And
J. David Rogers
Grand Canyon Research
The 218-Mile Toreva Block
218-Mile Landslide is a classic example of a Toreva block. Although
many of the landslides in Grand Canyon and Colorado Plateau exhibit
rotational movement, only a few are as intact as the Toreva block
shown in the photo below.
This view above 220-Mile Camp in the western Grand
Canyon shows a textbook example of a Toreva-Block landslide high above
the Lower Granite Gorge on river right. As with other large
landslides in Grand Canyon, this one experienced basal failure in
the Bright Angel Shale.
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