Plate 25 



NO.f}QUE.DEPT. 







B.W.5. N.Y.C. 







WALLHILL DIV. 







PROFILE 5H0W/NG yVASH AND CO.^£ BOmNGS 

 LINE A - 5PR.INGT0WN 





1 < s 



? 

 ■^ 



§ 







5 



"si 

 5;, 



==^=5^^^^ 



5^-^ 



— 



— — ^x=/^^- 



. 



..... -- 



■ " -—-^—-4 





Tn 



\ 



3rTccliri€d Dr'itt Depesits 





/ 



^^^ 



i 



t'ic\ 











s>^ 





^^^^^i==^ 











Hud 



son K 



f u 



er Shciie^ Q nd "Sc 





S tc 



rv e s. 



/v....: 















J^f-ZO<! 









,',XLL--!L' ^iPHOr^ 























Cross section showing the buried preglacial Wallkill channel as indi- 

 ated by exploratory borings near Springtown 



1 ^ 





^• 'r" 



+ 



1 .> 



7 



WALLK/LL SIPHON 



Profiles of the present and preglacial Wallkill channels near Libert}'- 

 ville. and a diagrammatic section showing the different types of drift- filling 

 together with the borings which furnished the data 



