DRUMLINS OF CENTRAL WESTERN NEW YORK 397 



although they survived where immersed in more than 30 or 40 feet of 

 water. 



At Sodus village the Iroquois beach, the " Ridge road," is an 

 erosion cliff in several strong drumlins. Westward the north border 

 of the Syracuse-Rochester drumlin area swings to the south of the 

 beach and follows about west-southwest to the Genesee river, and 

 thence west and north of Avest to the limits of the area northwest of 

 Batavia. The following places in order westward lie at the northern 

 limit of abundant drumlins : Sodus, Williamson, Lincoln, Penfield, 

 Pittsford, Churchville, Bergen, Oak Orchard Swamp. 



Eastward from Sodus the Iroquois shore with less maturity curves 

 southward around Sodus bay, but still marks a north limit of the 

 close set drumlins. The villages along this border are : South 

 Sodus, Wayne Center, Rose, West Butler, the line passing 2 miles 

 southeast of Wolcott. The northern border of the Syracuse- 

 Rochester area curves so as to lie approximately at right angles to 

 the axial direction of the drumlins. 



South and east from Sodus bay, over the Montezuma and Oneida 

 lowlands, the groups of drumlins stood as islands in the Iroquois 

 waters. 



East and northeast from Sodus bay a somewhat distinct area of 

 heavy drumlins borders the shore of Ontario ; and it is this series 

 which passes around the east end of the lake toward Watertown. 

 The villages of Fairhaven, Fulton, Mexico and Pulaski lie. in this 

 area. 



Passing lakeward from the Iroquois beach, into what had been 

 deep waters, a belt of drift forms, moraine or drumlins, gradually 

 appears which is abruptly terminated by the present Ontario beach. 

 It would be interesting to know if the waters of Ontario hide drum- 

 lins in their depths. As a series of heavy drumlins are opposing the 

 waves all the way from Sodus to Oswego [pi. 7, 8], it seems quite cer- 

 tain that northern members of the group have escaped destruction 

 by submersion in the deeper waters. 



The southern limits of the great drumlin area are even less 

 definite than the northern and can not be tersely stated. Approxi- 

 mately they may be given as follows : The western extremity of 

 the area is bounded on the south by the shore of the ancient Lake 

 Warren from Indian Falls to Leroy. From Leroy the drumlins 

 spread south up the west slope of the Genesee valley to Mount 



