LOBECK, NEW YORK CITY, A PHYSIOGRAPHIC C ESTER 



27 



obtain glimpses of the Catskill Mountains. He may conjecture regard- 

 ing the j^osition of the Cretaceous peneplane in this area. Besides the 

 topographic map, and possibly the State geologic map which he carries 

 with him, the literature to which he refers will include the Xew York 

 State Bulletin on the geological history of Xew York (252), and in this 

 he will be careful to note Darton's interesting stereogram drawing of the 

 Shawangunk Mountains, and he will also take note of Tarrs Physical 

 Geography of Xew York. 



Catskill. — Another profitable trip of this size is the one to Catskill. 

 By leaving Xew York on the night boat a party may find itself at Cat- 

 skill next morning ready for the field. During the day they are able to 



fj4 



? < vprifm 



^^^^l^dT^A The Glacial Trough 



^t^i*M^fm&^ o/ Lake 6eor S' 



Fig. 23. — Vista down the open trough of Lake George 



The islands on the lake floor are frequently characterized by stoss and lee slopes, 



indicating a southward movement of the ice tongue 



study the folded hills of the Little Catskills, where every conceivable type 

 of Appalachian mountain and valley is presented. Davis' (118) articles 

 with sectional block diagrams unravel the whole secret for us. 



Meriden. — A third trip would set one down in the evening at Meriden, 

 Connecticut, amidst a wealth of interesting features (Fig. 18). The 

 Connecticut Lowland, the faulted trap ridges, forming the Hanging Hills 

 of Meriden, the Xew England upland, the sharp departure of the Con- 

 necticut River from the lowland into its gorge at Middletown may be 

 seen at first hand, and thought should be given to the physical history 

 of this part of Xew England. Topographic and geologic maps arc essen- 

 tial and reference should have been made to Davis' splendid survey 



