56 NEW YORK STATE MUSEUM 



The lowering Warren and all subsequent waters flowed eastward 

 to the Mohawk-Hudson. 



2 The pre- Warren waters in central Xew York had a complicated 

 history with varying levels and different outlets. These waters 

 fall into two provinces; those tributary to the Seneca valley, the 

 glacial Lake Newberry [pi. 35]. with southward escape at 900 feet 

 through Horseheads to the Chemung-Susquehanna; and those 

 tributary to the Genesee valley. The higher waters of the latter 

 area oscillated between escape to the Allegany-Mississippi and to 

 the Susquehanna, but under 1200 feet and down to about 900 

 feet, the altitude of the scourways at Batavia, the Genesee waters 

 escaped westward to the Warren lake. Between the now tilted 

 plane of Lake Newberry, about 1000 feet on the Batavia parallel, 

 and 900 feet, the Batavia scourways, all the waters of the Seneca 

 basin area as well as the Genesee area poured westward into Lake 

 Warren. 



3 The west-flowing waters with outlets on the Batavia meridian 

 across to Lake Warren, from about 1200 feet, have been called in 

 a former writing the Seventh Stage, or Warren Tributary Stage of 

 the Genesee glacial lakes. It is now proposed to differentiate the 

 waters standing between the Newberry plane, about icoo feet at 

 Batavia, and the plane represented by the 900 feet scourways at 

 Batavia and give it a distinctive name, for the reason that it was 

 the immediate successor of Lake Newberry and had a broad rela- 

 tionship, covering the provinces of both the Seneca and Genesee 

 basins and extended eastward to the neighborhood of Syracuse. 

 The name is Lake Hall, after James Hall, whose district under the 

 early survey of the State included the western end of the State 

 and much of the territory covered by these waters. 



4 Lake Hall received as tributary drainage all the glacial 

 waters and the land streams of the central Xew York valleys as 

 far east as the Onondaga valley, and probably as far as to the Lime- 

 stone and Cazenovia valleys, or to the village of Jamesville. It 

 formed a narrow stretch of east and west Y\ater but with south- 

 ward prolongations extending up the several deep valleys [pi. 36]. 



5 During the life of Lake Hall the ice barrier in the Syracuse dis- 

 trict was a dam somewhat higher than that on the Batavia 

 meridian. Possibly there were oscillations with temporary flow in 

 either direction. But certainly there came a time when the ice 

 front receded at Syracuse so as to uncover passes below 900 feet 

 altitude, and then the central New York waters (Lake Hall) found 



