This is the white blazed Mt Tom Trail. Parking is at the small lot on your left a little ways down Mt Tom Rd from 165, just before crossing a small bridge. The trail trail starts on the other side of the road. This is probably best when heading towards Halloween or the main ledge. Alternatively, you can park well off the road at the height of land on Rt 165 where the trail crosses the road.This is closer to most of the bouldering. Be aware that people drive fast here and you are in a blind spot when pulling in or out. If you need to make a U-turn go a minute further west to the bottom of the hill and you can turn around at a dirt parking area on your left. Get as far off the road as you can.