672 GLACIAL FORMATIONS OF ERIE AND OHIO BASINS. 



place eastward to the interlobate moraine in western Wyoming County. 

 The portion of the Gowanda moraine west of Cattaraugus Creek Hes along 

 the south border of the lake plain near the base of the escarpment, and is 

 separated from the morainic system under discussion only by a naiTOw strip, 

 in places a mile or less in width, along the face of the escarpment; but 

 from the point where it crosses Cattaraugus Creek, at Growanda, northeast- 

 ward to the interlobate moraine, the G-owanda moraine lies a few miles 

 north of the inner border of this morainic system. This strip between the 

 moraines, although involving the same succession of ridges and valleys 

 that are crossed by the moraines, is strikingly different from the morainic 

 strips. The slopes and crests of the ridges are nearly free from drift swells 

 and the valley bottoms are smooth and ojDen. The drift is also perceptibly 

 thinner on the ridges than in the morainic strips. 



East from the interlobate moraine there is, for some distance north 

 from this morainic system, a somewhat hilly region with comparatively few 

 drift knolls and a much thinner deposit of drift than appears in the moraine. 

 The knolls do not seem to be arranged in such definite belts as in the 

 Gowanda and Hamburg moraines which connect with the western side 

 of the interlobe, yet their deposition probably extends over the time 

 occupied in the production of each of these moraines. 



RELATION TO LAKE MAUMEB. 



The Lake Escarpment morainic system was apparently formed during 

 the lower stage of Lake Maumee while it stood at the level of the Leipsic 

 beach. That beach, as indicated on pp. 734-738, can be traced with some 

 certainty as far east as the vicinity of Girard, Pa., though it is a compara- 

 tively weak beach from Cleveland, Ohio, eastward. Farther east than 

 Girard there are only faint and rather uncertain indications of wave action 

 at the Leipsic level. The ice sheet appears to have persisted there until 

 the lake had found a lower outlet and begun to form the Belmore beach. 



SECTIOlSr V. MOBAIKES OF WESTERN XEW YORK SOUTH OF EAKE 



ONTARIO. 



There are several short moraines in western New York between the 

 Lake Escarpment system and the shore of Lake Ontario, two of which, the 

 Gowanda and Hamburg, connect at the east with the interlobate moraine 

 which extends northward from the Lake Escarpment system to northwestern 



