This map from 1890 shows Oconomowoc, Waukesha and the lake region of Waukesha County, Wisconsin. Marr & Richards Engraving Co. and was originally used as an advertisement for the Chicago, Milwaukee & St. Paul Railway. The map has been restored to its original condition by KNOWOL. High resolution reproductions are available here.
The map shows a bird’s eye view of Waukesha County including landmarks such as the Nashotah Hotel, Oakton Springs, Fox River House, Spring Bank, the Sanitarium and more. The map also lists more than twenty lakes and springs and says, “all these lakes and resorts are within four hours ride of Chicago, on the Chicago, Milwaukee & St. Paul Railway.”