Coop of Coop's Corner fame managed to string some dirt roads together between Prescott, and Pepin WI. I've ridden many of these roads and fished a handful of the streams. The majority of the roads in this area are paved so he managed to get way off the beaten track. The map doesn't have enough detail to tell you how to recreate the ride, but it'll let you know where to look.
Coop was kind enough to post a screen shot of his breadcrumbs AND some video/ GPS data in his post JeffRide.
Taken (linked to) w/o permission form Coop's Corner - Go there. Read the blog. Add him to your blog feed. (I did)