MARGINAL GLACIAL DRAINAGE FEATURES 



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of trunks and branches of hemlock trees is scattered over the bottom; 

 a rather characteristic feature of such channels in this region. The 

 lower bank, or the one which was nearest the ice, is low, varying from 

 two to ten feet in height. The opposite bank, formed by trimming of 

 the hillside, is very steep, and thirty or forty feet high in places. The 



Fig. I. — Sketch of Slaterville Springs channel, showing its contour-like character. 



channel, beginning on the west side of the hill, follows closely the 

 contours around the south end to the east side, where it becomes lost 

 for a short distance as it crosses a small valley or gully, but reappears 

 again, though less distinctly, beyond. 



An interesting feature is the disappearance of the channel in cross- 

 ing the small valley, and its re-appearance on the opposite side. It 

 may be that a block of stagnant ice, probably more or less buried, lay 



