Maybe this is a down state thing but up here in Mecosta / Osceola / Manistee counties we have miles upon miles of powerline trails that traverse the state lands. Just last week I saw a whole convoy of 4x4's crossing US 10 from the powerline trails heading south into the Manistee National Forest. I see some of the areas I used to wheel in as a kid are gated off now but that seems to be to property owners doing not the DNR. This is a good discussion and I hope somebody has an answer...it was always my understanding that if you had an ORV sticker you were considered good. Then again laws change and I haven't lived in this state since 97' so possibly I have no idea what I'm talking about!