A favorite pastime of mine is finding petroglyph sites in the Arizona desert—the kind only rock art aficionados know about. But even the popular tourist petroglyph sites, such as this classic photo spot on Signal Hill in Saguaro National Park, can offer some inspiration and introspection. #saguaro #findyourpark #nationalparkgeek #rockart #petroglyphs #sonorandesert #instagramaz #igerstucson #haz #optoutside #nps100