Right along the Barker Dam trail is a cave full of petroglyphs. Petroglyphs are carvings made in the patina of the rocks/boulders found in the area. Unfortunately, someone didn't realize this and painted the carvings - in essense destroying them.
We stood and took a bunch of pictures and sadly commented on the boldness of someone painting the glyphs. Just about then a couple came up and the man started climbing all over the cave. It just seemed to add insult to injury. :\ Here is a page of the pictures and some comments.
We walked a bit farther and started to lose our trail. It branched in several different ways. I waited in the shade of a boulder while Sean scouted out the trail. It was a beautifully sheltered spot. The wind came through and made lovely sounds through this tree.
We found our way back to the car. It took a bit of walking in a wash. And we got to see a couple jack rabbits.
From there, we took the Queen Valley road (which was fairly uneventful) and crossed the road to the Geology Tour.