KAME AREAS IN WESTERN NEW YORK 135 
lakelets. From here south the drift forms massive hills, which 
culminate two miles north of Fishers, opposite Railroad Mills flag 
station. The creek at this point is crowded to the extreme western 
edge of the valley by the drift hills, which stretch eastward two 
miles to the Turk hill drumloid mass. The higher hill on the 
western side, known as Woolston hill, has been truncated or lev- 
eled by lake waters somewhat under 700 feet altitude. The same 
level is conspicuously shown upon other hills, east and south. 
The surface configuration is very striking, being partly morainic 
and partly erosional. 
The drainage of the whole area is northward by Irondequoit 
creek. 
Eskers—Lying in the midst of the kame sands, nearly oppo- 
site Cartersville and north of Bushnells Basin, is a conspicuous 
esker which has been briefly described by Dr. Dryer. This esker 
first appears in a field of Mr. D. L. Guernsey (lot 21 of Pittsford 
town map), which is a fine adhesive or silty sand with rare stones 
and broad basins and kettles. In the southward sloping field 
the esker emerges from beneath the clayey sand at its full alti- 
tude as a ridge of gravel. For a distance of about one-fourth 
of amile it extends nearly southeast, parallel with the Palmyra 
road; then turning more to the south it suddenly ends at the 
crossing of two highways. This break is perhaps the result of 
erosion. Some sixty or eighty rods southeastward the ridge is 
abruptly resumed at a gravel pit. At the top the gravel is dirty 
and unassorted; in the middle section is a heavy bed of clear 
cobble ; while the bottom is finer gravel but without much strati- 
fication. Two-thirds of the cobble up to six inches in diameter 
is Medina sandstone. 
From here southward the esker ridge is very distinct, some- 
what curving, with irregular crest line. It is mostly 30 to 40 
feet high, with steep slopes, 26° to 30°, and the crest in some 
places is clear sand. The highest section is 80 feet above the 
basin at its foot, with an eastern slope of 34°, in coarse gravel. 
From the high section it curves southeast and is lost in the 
artificial high embankment of the canal at the creek crossing, 
