The southwestern state known for having the most vibrant and diverse rock art sites is New Mexico.

New Mexico is renowned for its rich cultural history, including a vast array of ancient rock art sites. These include petroglyphs and pictographs left by Native American cultures, such as the Ancestral Puebloans and the Navajo. Some famous sites in New Mexico include Petroglyph National Monument in Albuquerque and the Gila Cliff Dwellings National Monument. The state's unique geography and cultural heritage contribute to its prominence in preserving rock art.