Oh, I really love route 138. Definitely one of my faves if not my all time favs. All the waterfalls off of it, the Steamboat Inn, the salmon pool off of steamboat creek (they gather in this clear pool till the winter rains come and they can go further upstream, so you see like 500 salmon just hanging in this pool in the fall. it is amazing), the hot springs just past tokeekee? falls, etc, etc.... Probably one of my favorite places in the continental US after perhaps Yellowstone.