MI DNR trail map

Anyone have any experience using the MI DNR trail map? I'm just wondering how accurate it is and if there's anything I should watch out for. I know I'll need an OVR license and Trail permit. Anything else I should know before heading up there?

DNR - ORV/ATV Riding

The trail maps are pretty good. They just went through and updated them last year state wide. There had several public meetings to get input on trail openings and closures.