Abandoned Shorelines of Ashtabula Quadrangle 
365 
the beach phases of the shoreline is four to eight feet high ; locally the 
shoreline is a cliff cut in the moraine. 
In the vicinity of Unionville on the Perry Quadrangle, which is 
next west of this sheet, the Whittlesey shoreline consists of two 
beach ridges, both of which continue a short distance eastward into 
the Ashtabula sheet. For the next mile a beach ridge, consisting of 
gravel and some fine sand, with a steepened outer slope, marks this 
shoreline. Where the highway which follows the Whittlesey crosses 
the east branch of Wheeler Creek, 153/2 feet of glacial till is shown 
in the cut; the steepened slope in the drift becomes more con- 
spicuous eastward toward Cowles Creek. Dunes cap the land slope 
for a mile w^est of this creek, and drifted sand is found continuously 
to the east as far as the meridian of Saybrook; these deposits of 
sand, as already described, belong to Lake Maumee. 
From a point three and one-half miles west of the Ashtabula 
river the cliff phase of the Whittlesey continues to the river; through- 
out most of the last two miles, the outer slope is often 40 feet high, 
as shown in Fig. 3. In the absence of cuts it could not be determined 
whether rock forms any part of this cliff ; the till in the area is prob- 
ably over 40 feet thick; the Ashtabula branch of the Pennsylvania 
railroad makes a cut through this shoreline, but so far as observed 
does not disclose rock. Drifted sand hills of the Maumee level 
throughout this two mile stretch, are numerous, in one place rising 
above the 800-foot contour. Near the Ashtabula River the shoreline 
Fig. 3. Cliff phase of the Whittlesey south of Ashtabula. 
