p. 298

308 Jefferson Co.

to reside here for a great length of time. The place described as the "Termination of a sewer about three feet below the surface, and arched with stone" appears to be not a regular arch, nor even a sewer. It is remarked that we have yet no evidence that the ancient inhabitants of this continant were acquainted with the nature and properties of an arch. Aztalan according to Humboldt, is the ancient name of the country from which the people of Mexico called Azteeks emigrated; and this is described as lying far to the north. Hence a little fancy only is necessary to locate this country in Wisconsin, and at the place where the ancient works appear to be most extensive and interesting. These works were first explored and a description of them published in 1836 by N.F. Hyer-Esq.

Keysville is a thriving little village two miles west of Aztalan on Rock lake having a grist mill, saw mill, and numerous dwellings.