going to make a trip in oct was looking for the best place to ride were to stay any help would be great thanks
Yeap! permit needed if on US National Forest Service ground.
Wrong. You need a OHV permit. Check it out here.
Colorado State Parks
Get this guide book. It is great for mapping all the trails around Vail. See area 4. Recommended trails are Shrine and Ptarmigan passes, Wearyman creek and McCallister gulch, Lime Creek and Benson Cabin. Here is the link.
Guide to Colorado Backroads & 4-Wheel Drive Trails (2nd Edition) [0-9664976-6-X] - $24.95