56 



WILLIAMS— DEEP KANSAN PONDINGS IN 



of the above lobe which had crossed Bald Eagle Mountain, and lay 

 upon the several hopper-shaped valleys immediately south of it. The 

 part of the lobe lying north of that mountain in the Susquehanna 

 Valley between Williamsport and Lock Haven, and in the northern 

 part of Bald Eagle Valley, had been cleared away by the torrent 

 sweeping over the Dix saddle into the Juniata Valley, carrying ice- 

 bergs and gravel, as just described. There was also a considerable 

 discharge of the ponding through the marginal canyon between the 

 glacier and the complex of ridges between Bald Eagle and Jacks 

 mountains. 



Figure 2 shows a sausage-shaped ridge of outwash from the 

 wasting glacier in Mosquito Valley, formed by a narrow torrent 

 sweeping through Antis Gap in Bald Eagle Mountain, and drop- 

 ping its burden as its velocity was checked, and its course changed 

 to that of the slow movement of the deep ponding towards Bald 



Fig. 3. Detail of cutting in ridge from Antis Gap, showing rough assortment 



of strata. 



Eagle Valley. Mosquito Valley has a limestone floor and a high 

 ridge-rim of Oneida. The gravel ridge is composed of these, and 

 rises abruptly from the level Susquehanna Valley like an island from 



