Be cautious about ticks, especially deer ticks in the SW corner of WI in the spring. Also, if you like Amish, SW Wisconsin is for you. They are settling here like locusts on biblical Egypt
Yellowstone Lake is between Fayette, Blanchardville, and Argile. The main park entrance is on Hwy F. The surrounding area is all AG. The nearest town of size is a toss up between Darlinton, Blanchardville, and Argile; Darlington being the largest. Draws are the lake, equestrian trail (BYOH), some walking/hiking trails, the ice cream store, and the range. Nearest tourist draw(s) are Mineral Point with the Pendarvis reconstruction
http://www.mineralpoint.com/art/index.html (Old lead mine area), Dodgeville- House on the Rock, Taliesen
http://www.taliesinpreservation.org/ (Frank Loyd Wright). If you got desparate, you could bike the Cheese County (Tri-County)Trail; though it is a multi-use trail, it is mostly used by ATVs. Check the Wisconsin Dept of Tourism for details
http://www.travelwisconsin.com/
Personally, I like Door County. You can take a Ferry over to Washington Island and bike the whole island. Winery tours, Cherries and Apples at the right times of year, Maritime Museums up the wazoo, and lots and lots of historical walk thoughs. Algoma is nice, and you used to be able to catch some real nice lake trout and coho off the breakwater. Manitowoc has a WWII Sub that you can walk though, and I seem to recall a Ocean going Tug that was available for walk though, but that may have been Two Rivers. There is also the nuke power plant at Kewanee, but I don't know if they will let you just wonder around there
The list goes on and on of things available to do here. You may want to camp in more than one place and sample a bit of everything around you.
Sorry to ramble...
