ROCK-CUT SURFACES IN THE DESERT RANGES 445 
happens, the gravel sheet is shown reaching almost to the mountain 
core upon a sloping rock-cut bench. That the bench contributed 
| to the sheet and that the sheet gradually crept mountainward 
over the bench seems plausible. <A fault has raised the bench, 
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Fic. 3.—Vertical scale double the horizontal. 1 square=1 mile 
which, by virtue of its elevated position, has been stripped by 
erosion of a considerable part of the gravel deposit from the area 
above the fault line. Patches remaining are taken to show that 
the bench was formerly gravel capped throughout. 
