"...Wall Lake is the largest in the county, and is some three miles long by two miles wide. It was so called from a wall of earth and large boulders which surrounded it... A grest deal of wonder has been expressed whether the wall was a work of art, or of nature: but we venture to presume that it was formed by the ice freezing fast to the boulders on the bottom of the lake and in the Spring the winds dashed the ice on the shores leaving the boulders as the ice melted. The process must have been slow, but thousands of years would accomplish much. On the south bank of this lkae is a beautiful grove and the lake has sand and gravel beaches. It is quite a resort for parties in search of recreation, who find excellent boating, gunning and fishing. This series of lakes constitutes a prominent feature in the scenery and beauty of this county, and adds greatly to its attractiveness to settlers. "
A.T Andreas' Historical atlas of the state of Iowa 1875
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