Tim's got it right for Michigan. I talked to a DNR officer about stumping and, of course, he had no idea what I was talking about. If you have a weapon on MI state land, you'd better have a valid hunting license. Additionally, there is also the potential problem with "destroying habitat" on state land which is also forbidden. Also, there are times of the year when you just can't hunt on state land. Usually most of the spring when birds are nesting. That's usually included on the signs identifying the land as state land. In a nutshell, stumping on state land is very risky except during deer season! What you might want to do is identify your local Conservation Officer, contact them and get their OK. We only have officer for all of Oakland County, so with one person's OK (if I can get it) I'd be safe anywhere in the county.