138 Vale Sh IQA ER OSEI LID) 
subjected to the valley drainage. Doubtless a considerable part 
of the original mass has been swept into the Irondequoit bay 
depression. The details of this history, as connected with Iron- 
dequoit bay, will be reserved for another paper. 
There are no important morainal features upon either side of 
the kame area. West of the southern part of the area, at a dis- 
tance of five miles, is the large, isolated group of the Mendon 
kame hills, with a plain intervening; otherwise the east and the 
west boundaries are drumloid. South is the enormous deposit of 
gravel forming the Hopper and Fort hill groups of Victor, which 
are really the antecedent part of the Irondequoit kame system. 
At Victor is a break in the Turk hill drumloid range, through 
which the Lehigh Valley and the Central railroads find passage. 
VICTOR KAME AREA. 
Location and extent—-The most massive kame hills in the 
region, and probably in all western New York, are in the south- 
western part of the town of Victor, Ontario county, extending 
into the towns of East and West Bloomfield and into the south- 
east corner of Mendon, Monroe county. (See Fig. 2.) They 
cover an area of some ten square miles and attain in the ‘“‘Hop- 
per” hills the lofty altitude of over 1100 feet. The area is elon- 
gated north and south, the northern apex being at Fishers station 
the Auburn branch of the New York Central Railroad, and the 
southern end forming a narrow belt terminating two miles south 
of Millers Corners station, on the Batavia and Canandaigua 
branch of the same railroad. The total length is about seven 
miles. The greatest breadth is about three miles, where the 
group culminates in the remarkably bold ridges northeast of 
Millers Corners. 
Topography, altitude and drainage-—The higher kame hills of 
this area have a very remarkable topographic relief. The cul- 
minating mass is locally known as the ‘‘ Hopper”’ hills, which lie 
immediately north and northeast of Millers Corners, upon the 
north and south line between Monroe and Ontario counties. 
This is a lofty, ridge-like mass lifted high above the surrounding 
