From the pattern of moraines, describe the evidence of more than one glacial advance.
The question is based on the section of the “Mt. Tom, California” quadrangle reproduced below (Figure 48-8). The map shows a pair of large lateral moraines at the mouth of Pine Creek coming down the eastern slope of the Sierra Nevada 137°24'50"N, 118°36'11"W). A road (shown as a double black line) follows the course of Pine Creek out of the valley between the lateral moraines. You can view this map in color by going to the Lab Manual website or by scanning the QR code for this exercise.
What will be an ideal response?
At least two distinct moraine crests along south side.
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