Harley Davidson in Chippewa Falls publishes a Driftless region Butler map...you can call them and order it.
A good place to stay, so many along the Great River Road...hard to go wrong with so many nice towns, great riding on either side of the river. If you like breweries...check out Potosi in the south, ride the Cassville Ferry, visit Pikes Peak (yes, the same Zebulon Pike) in Iowa, stop in to Wonewoc where the Wisconsin Guzzy rally takes place in August...lots of great choices out on the western side of the state. Ride along the Wisconsin river from East to West and back...stop in Prairie du Sac, Chien, La Crosse...really enjoyable riding all in that area.