A cove where ancient civilizations' petroglyphs (rock engravings) have been discovered on the JE Canyon Ranch, a former… https://www.rawpixel.com/image/582546/carol-highsmiths-colorado-photographFree Image from public domain licenseA petroglyph mounted outside Taliesin West, renowned architect Frank Lloyd Wright's winter home and school in the desert… https://www.rawpixel.com/image/582451/carol-highsmiths-arizona-photographFree Image from public domain license