City of Rocks gets its name from the incredible volcanic rock formations found here. The park encompasses a one square mile area in the scenic Chihuahuan desert region of southeastern New Mexico at an elevation of 5,200 feet. The “city” is a geologic formation made up of large, sculptured rock columns, or pinnacles, rising as high as 40 feet and separated by paths or lanes resembling city streets. These rocks were formed about 34.9 million years ago when a very large volcano erupted. Then, erosion over millions of years slowly formed the sculptured columns seen today, creating a stunning, otherworldly landscape.

Located about halfway between Silver City and Deming, City of Rocks offers camp sites, hiking trails, excellent mountain biking, wildlife viewing, birding, stargazing, picnic areas and a desert botanical garden. The uniquely designed, new Visitor Center includes a large display area and modern restrooms with hot showers. City of Rocks State Park is your official sponsor of adventure!

http://www.emnrd.state.nm.us/SPD/cityofrocksstatepark.html