440 CHARLES EMERSON FEET 



phenomena occur where streams head northward from their debou- 

 chure, and are represented, it is beheved, by a part of the State Camp 

 deposits on the southern edge of the Highlands. The gravel plateaus 

 of the Highlands that were examined are (i) at West Point and south 

 toward Highland Falls (30) ; (2) at Cold Spring {^'^■^ and south toward 

 Garrison. The stratified drift at Roye Hook near State Camp, per- 

 haps part of the State Camp plateau where the surface slopes east- 



FiG. 14. — Looking across the clay plain of the upper Hudson. 



[Photograph by W. S. McGee.] 



ward, and the Jones Point plateau, on the southern edge of the 

 Highlands have characteristics similar to those in the Highlands and 

 indicate a similar disposition of the ice in respect to the valley when 

 they were building. 



North of West Point in the Highlands there is little left of any former 

 valley filling, if the valley ever was filled. One or two miles south of 

 Storm King, on the right bank of the Hudson, a remnant of clay in a 

 terrace form was observed at an elevation estimated at 60 feet, and 

 nearer Storm King another remnant was observed. On the left bank 

 there are several remnants of clay or gravel, the most conspicuous of 



