Image 1 of 1
AZSA_005 - Petroglyphs at Signal Hill and Tucson Mountains, Saguaro National Park Arizona.jpg
AZSA_005 - Sunset light warms petroglyphs on boulders at Signal Hill which were left here by Hohokam people perhaps 1000 years ago, Tucson Mountain District, Saguaro National Park, Arizona, USA --- (4x5 inch original, File size: 6000x7700, 132mb uncompressed)