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Whitbeck, R. H., 1871-1939 (Ray Hughes) / The geography of the Fox-Winnebago valley
(1915)
Chapter II. The origin and physical features of the Fox-Winnebago Valley, pp. 7-12
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Page 10
GEOGRAPHY OF FOX-WINNEBAGO VALLEY consin was divided into two lobes such as are shown in (Fig. 2). There is equally good reason for believing that the scouring action by the ice lobes in these valleys both deepened and widened them. The Fox-Winnebago Valley is therefore due, first, to the presence of alternating soft and hard layers of rock; second, to the erosion of a valley in the softer layers by an ancient river; and, third, to the somewhat further deepening and widening of that valley by glacial erosion. Fig. 2. Sketch map showing the various tongues or lobes, of the gailer In Wisconsin at one period of the Ice Age. 10
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