This highway is limited to auto traffic only.....so no trucks to deal with. A great place to go when it's hot as temps are often 10-20 degrees lower on top of the mountain. Many trails and places to stop at overlooks. The Black Mtn overlook has a short boardwalk trail to an overlook and a nice little picnic shelter. Very little other folks there so a great get away for a quite day. At Black Mtn you'll feel like you're at the top of the world.