Location: New Mexico
One of the largest sites I've seen so far, is Fryingpan Canyon, located near Massacre Peak in the Cookes Range outside Deming. A massive petroglyph site, combined with rock shelters and large areas of grinding holes makes this one of the most evocative sites in the Southwest. Three Rivers Petroglyph Site is perhaps the only one that surpasses it. If you go to Fryingpan, look carefully in every nook and cranny or you might miss something wonderful.