The best place for deeper stuff, rutty water/mud anyway, used to be where 130th intersects 44th. I'm sure it's blocked off by now, but that was a nice stretch that was REALLY unmaintained. It led to a cross street that would be somewhat challenging for most mild rigs. I know that my XJ with 33s and 7" of lift had water up to the top of the cut wheel wells some 12 years ago or so.
Jackasses really messed up what could have been a good thing out there by tearing up the woods and digging trenches that required tires larger than 35s. Last I heard the DNR was patrolling the land just aching to nail these people so be careful. Even without major challenges, its nice to get out there sometimes.