Washburn County has designated Dog sledding trails. Located northeast of Spooner , west of Minong from Hwy F north on snowmobile trail #39 to Hwy 77, then east to Hwy 53 or west on #39-8 to Barnes along trail #8. (also called Frog Creek Trail) 
See Map

Perhaps you've always dreamed of mushing your own dog sled across frozen tundra, but would settle for a dog sled ride instead. Check out these sites. 

 http://www.dogsledrides.com/state.php?state=WI

http://www.wnrmag.com/stories/2001/dec01/sleddog.htm