REPORT OF THE DIRECTOR AND STATE GEOLOGIST 1902 r25 



l 



the college hill, and terminates as two ravines, largely of recent 

 cutting, north and south of the college grounds. 



The lowest channels which lead across from the Oneida valley 

 to the Oriskany valley are three or four ill defined scourways 

 crossing the north and south road 2 miles northeast of Vernon, 

 and parallel to the West Shore Railroad. They are spread over 

 a breadth of more than a mile, and all lead into Deans creek. 

 Their altitude, by the contours, is 660 to 640 feet. The weakness 

 of the scourways is probably due not to deficiency of water, 

 but to lack of eroding power, the streams being already 

 graded to their base level in the Oriskany valley. 



As the ice front receded still farther toward Rome, there 

 was chance for yet lower escape of the Oneida valley waters, 

 but the ground between Hecla Works and Stanwix has not 

 been examined. 



All the north-facing slope from Prospect hill to Lairdsville 

 has been quite denuded of its drift by the stream action, and 

 the cut banks and channels are mostly in rock. This is charac- 

 teristic of all such slopes which have been subjected to stream 

 erosion at the lower ice front. Examples are found all the 

 way from Westfield in the Erie basin to east of Utica. 



Low-level channels from Oneida to Rome 



The latest and lowest channels cut by the east flowing glacial 

 waters before Lake Iroquois was established are found on the 

 line between Oneida and Rome. These latest pre-Iroquois 

 channels are described in the last (21st) report. 



GLACIAL DRAINAGE FROM ORISKANY VALLEY TO MOHAWK 



VALLEY 



Channels east of Clinton [see pi. 2] 

 The channels on Crow hill have already been described on 

 page r21. The only channel observed by the writer north of 

 Crow hill is a broad scourway which heads less than 2 miles 

 northeast of Clinton, at about 780 feet altitude according to 

 the map contours [see pi. 2]. This channel leads northeast 

 and then east, and passes to the south of New Hartford. It is 

 a good example of the type of shallow channel or scourway 



