p. 245

Milwaukee County

Around this lake at many places, as well as on other lakes in Wisconsin, may be observed a singular wall of round stones or boulders, laid up with much regularity as to suggest the idea of its being the work of art: a little further observation, however, will show that these walls are made by the expansion of the ice during the winter which has a tendency to push them upon the shore. The sandy ridges around many lakes are caused in the same way. The process may be observed in a very cold day in winter.

Pine Lake, lies immediately north of the Nagowicka, two and a quarter miles long, three fourths of a mile wide, five miles and a quarter around, and has an area of six hundred and ninety acres; being exactly the same as the Nagowicka. The Indian name is Chenegua or Pine; given in consequence of a few pine trees having been found on a small rock of land or island in this lake.