Lots of good sounding ideas. I haven't been in the Arrowhead very long, so it's almost all uncharted territory to me. I want to discover it for sure.
I like the idea of riding the sand around Gordon. I grew up in Solon Springs, so I've ridden around there a lot on a dirt bike (which was always a little tough since WI is not particularly dirt bike friendly). A street legal bike certainly opens up a lot of opportunities.
I've also wanted to ride in the Nemadji Forest - I've hunted there a lot, but never had a bike there. There are a fair number of single track trails, logging roads, and dirt roads to ride there. The Straight Arrows put on an AMA enduro there every year.
Of course, until my bike is back together, it's all moot for me. I'm still waiting on parts. I'm supposed to get my package by Thursday afternoon. So maybe, just maybe I'll be rolling again this weekend.