In the details I saw yall had that there was free parking camping at the other side of the mountain near the Hwy 119 trailhead of Wilderness Trail Off-Road Park.
Theres free parking and camping a lot closer than that. The Colmar parking area to the park is just a mile past Martys. Keep following Hwy 188 until it dead ends and theres a big parking area and places you can camp if you wish.
Heres a map below. Tried to post image but it cut off some of it. GPS Coordinates to Colmar Parking Area area are N 36* 39' 901" / W 083* 38' 890"
http://i60.photobucket.com/albums/h20/jonboy606/WoodsbuggysEventMap.jpgIf you need help or have any questions about Wilderness Trail Off-Road Park, call me at 606-302-1943 and if no answer call 606-499-0567. Thanks!
Jon