Abstract
Much of the area is mantled by till, whose thickness exceeds 100 feet in places. A complex history of glacierization is recorded by drumlins of diverse patterns, by eskers, and by features eroded in bedrock. The eskers form a dendritic pattern across the area, and are believed the result of regressive deposition from consequent superglacial streams. Some transitory proglacial lakes existed, but there has been no post-Wisconsin marine submergence of the area. The recorded sequence of ice movements through the area from oldest to youngest is (1) to southeast, (2) to north, (3) to N. 30° W., and (4) to N. 60° W. A carbon-14 age determination of 4140 ± 150 years was made on peat buried by the last ice advance.
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