U. 8. GEOLOGICAL 8UHVEY 



MONOGRAPH Llll PLATE XVIII 



PROFILE OF DEFORMED WATER PLANES OF THE EARLY GLACIAL LAKES IN THE EASTERN HALF OF THE LAKE ERIE BASIN ON A LINE RUNNING N. 56" E. FROM 



ASHTABULA, OHIO. 



!HitJL h .\ S o^? t0 "'Vm': 1 '' N , U Taylor's work in the Niagara region of New York and Ontario has shown that the Lundy (Dana) beaches become horizontal westward at about the same altitude 

 ,,ZT;Al!l' S J beaches in Michigan. (See p. 404.) The Dana (Lundy) beaches shown in this plate are faint and fragmentary, and it seems quite probable that they should be 



nted as becoming horizontal somewhere between Evans and Silver Creek. The beach shown at Westfield may belong to the Dana. 





