The Wall Lake in question is a picturesque sheet of water three miles long and a mile wide, in southeastern Sac County. The only published observations in regard to this lake that I have found are those of Mr. Charles A. White, who wrote in regard to it in connection with other walled lakes of Iowa, in the American Naturalist, Vol. II, and in the annual reports of the Geological Survey of Iowa, Vols. I and II.
Proceedings of the Iowa Academy of Sciences
©1899 Iowa Academy of Science, Inc.
Wilder, Frank A.
"Observations in the Vicinity of Wall Lake,"
Proceedings of the Iowa Academy of Science, 7(1), 77-82.
Available at: https://scholarworks.uni.edu/pias/vol7/iss1/12