SOUTHERN THIRD OF THE GLENS FALLS QUADRANGLE 





The geolojrfcally c 



olored ar 



as show s 



ccessive stages of the 



eat of the ice-shee 



t from Pa 



Imenown 



mountain and of the adju 



entof the Adlrond 



ack Hudso 



n river tot 



he country freed by the 1 



THE REGION ABOUT FOET EDWARD. 



Cotiloiir inleiTsd 20 ieet. 

 Datxtm, ia mnan sea U\-el . 



The remarkable trough from Fort Edward to the northeastern cor- 

 ner of the map extends the Hudson gorge into the Champlaln valley. 

 Another trough, not so deep, Is shown two miles east of Fort Edwar^. 

 These troughs served as outlets to Lake Vermont. 



