To find out everything there is to know about a topic of interest or a specific area (detailed maps, reference guides, travel books, etc.),  consult with your local bike shop, bike club, or advocacy group. 

Here are some excellent products available to you on-line:

RRB Cycles Guide to Riding in the Lake Geneva Wisconsin area.  Enjoy a "where to ride" reference guide custom-made by local cyclists and available exclusively through RRB Cycles.  Click here to order your copy for only $14.95 + $2.00 S&H.