The Huerfano Butte Petroglyphs is a site near Sahuarita, Arizona that we haven't visited yet. To get there you can enter 'Huerfano Butte Arizona' into your driving app. From Sahuarita it will route you via the S Santa Rita Road which after about 10 miles will bring you to Huerfano Butte which is right beside the road. We noticed in satellite view that it looks like there is a trail that travels around the side of the butte so hopefully it leads to the petroglyphs.
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.