The petroglyphs shown in the annex are off the beaten track, examples that are generally not well known. Indeed many are known only to local desert explorers, and are not in any of the books or papers describing this type of art. It's amazing how pervasive petroglyphs are in the area surrounding the Palo Verde Valley. It can almost, but not quite, be said that if you spot a large relatively flat rock, a close examination will reveal this type of art. Once again, please click on each image to enhance it.