| Summary: | Image Description from historic lecture booklet: "The thick drift accumulated beneath the end of a valley glacier, or beneath the edge of an ice sheet, is a terminal moraine. At each halt of the receding ice sheet a terminal moraine was built with lobes extending down the valleys. These moraines are low, hummocky hills, with enclosed basins, or kettles often occupied by ponds. We have seen these proofs of the great ice sheet of North America that developed during the glacial period. Let us now look at some of the glaciers of the present time."
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