Is one of the few locations in the Southwest set aside solely because of its rock art. It is also one of the few sites giving visitors such direct access to petroglyphs. The number and concentration of petroglyphs here make it one of the largest and most interesting petroglyphs sites in the Southwest. More than 21,000 glyphs of birds, humans, animals, fish, insects and plants, as well as numerous geometric and abstract designs are scattered over 50 acres of New Mexico's northern Chihuahuan Desert. The petroglyphs at Three Rivers, dating back to between about 900 and 1400 AD, were created by Jornada Mogollon people who used stone tools to remove the dark patina on the exterior of the rock. A small pueblo ruin is nearby and Sierra Blanca towers above to the east. A detailed petroglyph guide is available at the Three Rivers Petroglyph Site.