Longitudinal profiles up and down the valleys depict each level beginning at a different place; yet, each one emanates from a group of ice-contact kames and under drained kettle holes in end moraine (Fig.
Halts are most clearly expressed by the belts of end moraine hung like festoons across the glacial map in Ohio (Fig.
No glacier is known today which is producing an end moraine of the breadth and volume of those in Ohio (two mi wide, average 50 ft high).
One reason for insisting that the end moraine deposits represent most of the time of overall retreat is that there is evidence along at least three moraine fronts that a significantly longtime was involved, or there was actual re-expansion of the ice.
It coincides in position with one of the most prominent end moraine systems in Ohio, and with the last of the valley train systems in Scioto lobe.
c) LP = lake plain, GM = ground moraine, EM = end moraine, RM = recessional moraine, SM = superposed moraine.
For example, Totten (1969) has found that most end moraines in northern Ohio are superposed and the till unit at the base, which is most likely responsible for the landform, is different than the till unit at the surface.
These are portions of the relatively large, strongly trending end moraines that form the southern boundary of Ohio's major Wisconsinan till sheets (see Fig.
Wave-cut shorelines eroded in end moraines
record the maximum elevation of Glacial Lake Chicago as approximately 205-208 meters above sea level.