Hidden Canyon

5. An arch.  Obstacles along the way get increasingly difficult to surmount, so you just continue up canyon as far as you can go.  I stopped and turned around at a 4th class rock wall.  There was a rope there, but I had no way of knowing how old it was or how securely it was tied etc.  Also if I decided to use it, there was always the possibility that it wouldn't be there when I returned.  The safe thing to do was to turn around and head back.