The Bates Well Petroglyphs is a site in the Organ Pipe Cactus National Monument near Ajo, Arizona that we haven't visited yet. Included with this post is the GPS file and map that we plan to use for our first visit. If you don't want to wait for us to get around to it feel free to try the GPS file and map for yourself. With no guarantee, of course, but they most often prove valuable for us.