Take the 15 north to the 138. Exit right towards Silverwood lake. You'll come to a very curvy section of road a couple miles long, JUST after you get through this section at the bottom of the hill, on the right side there will be a forestry type sign showing motorcyles, quads and trucks, turn right there and follow it back to the staging area. there is an trail map at the staging area. it's a good trail it criss crosses the main fireroad so there are plenty of places to jump on and off the trail making it as easy or hard as you like.
Sons of Thunder is mainly a jeep group with 3 or 4 toyotas, good bunch of guys gals just the same.
Dennis