The final rock art site I found in Poison Spring Canyon was near the Walled Off Spring, hence the name I assigned to the site.  It is located a little over nine miles into the canyon, right on the main road, near the spring.  I actually drove past the site on purpose.  I was looking for an old cowboy campground that was about three quarters of a mile past the Walled Off Spring.  There is supposed to be an authentic Butch Cassidy inscription on the back of a large boulder at this campsite.  I located what I thought was the campsite area, but an hour spent boulder hopping failed to result in finding the Butch Cassidy inscription.  So after that little mis-adventure, I drove back to Walled Off Spring to search for the rock art.  I located the art, but it was a very small site.  There were two small figures with shields down low, then some zoomorphs way up high.  By this time I was getting worried that I needed to head out of the canyon, so I very well could have missed some rock art in the area around Walled Off Spring.  But here are my photos of the art I did find.