Numerous low mounds of irregular shape in the v1cm1ty of Grand Mound and De Witt, Iowa, are glacial features coming under the category of kames. Twenty-two kames have been identified within an oblong area about two or three miles wide and 12 miles long, lying immediately south of the Chicago, Northwestern railroad and U. S. Highway 30 (see Figure l). The area extends eastward from about two miles east of the town of Calamus, passing south of the town of Grand Mound and continuing two miles southeast of the city of De Witt. Parts of the kame field lie in Olive, Orange and De Witt townships, Clinton county.
Proceedings of the Iowa Academy of Science
©1956 Iowa Academy of Science, Inc.
Tuttle, Sherwood D.
"A Kame Field of Iowan Age in the Vicinity of Grand Mound and De Witt, Clinton County, Iowa,"
Proceedings of the Iowa Academy of Science, 63(1), 439-442.
Available at: https://scholarworks.uni.edu/pias/vol63/iss1/44