UNIVERSITY OF THE STATE OF NEW YORK 

 NEW YORK STAT K MUSEUM 



MAP OF LAKE WARREN 



IN 



XKW YONK STATE 



iikkmax I. KAlKciiu.i) H Lake Wai4ei 



L803 



Lake Iroquo 



Scale of Mile 



Hypo Wad pen Channels 



EXPLANATION 



Lake Warren was t.ho rostglaolal 

 water held by the wasting glacier 

 over the southern Huron basin, the 

 Erie basin, and the Southern part 

 of the Ontario basin, as shown in 

 this map. 



Its outlet was westward across 

 Michigan to tho glacial lake Ohi- 

 oago and to Mississippi drainage. 

 It invaded New York from the 

 west, extending as a narrow bolt 

 along the retreating front of tho 

 ice sheet, with southward prolon- 

 gations up the north and south 

 valleys. When the recoding ice 

 had uncovered ground In the Syra- 

 cuse region lower than the west- 

 ward outlet across Michigan the 

 watorflowod eastward to Mohawk 

 drainage ; and whou the westward 

 outlet was abandoned tho water 

 ceased to be Lake Warren The 

 eastward flow of tho Hypo- Warren 

 (or Hyper-Iroquois) waters cut the 

 remarkable sories of canyons and 

 cataract basins in the Syracuse 

 region which aro simply indicated 

 on this map. [Soe 20th annual 

 report, p. 122, 128, 120-30 and pi. 

 15, 25-83]. Finally the waters 

 were lowered to the Iroquois 

 level, falling through a vertical 

 distauco of about 440 feet. The 

 land has since been lifted nearly 

 300 feot higher than it was during 

 the life of Lake Warron and the 

 elevation of the Warren level in 

 the Syracuse region is today about 

 880 to 890 feet above ocean. The 

 ice margin is generalized in this 

 map and is somewhat hypothetic. 

 The incipient stage of Lake Iro- 

 quois is shown, but the entire lake 

 is mapped in plate 19, 20th annual 

 report of state geologist. 



