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<br />Figure 4. Front of glacial moraine in tributary to the Big Thompson <br /> <br /> <br />River at Estes Park. Stream to left of man has not disturbed the <br /> <br /> <br />glacial sediments since they were deposited, about 8,000 to <br /> <br /> <br />10,000 years ago. <br /> <br />~? <br />