Valley of Fire State Park, established in 1935, is world-renowned for its 40,000 acres of bright red Aztec sandstone outcrops, with gray and tan limestone formations, petrified trees, and ancient petroglyphs dating back more than 2,000 years. Basketmaker people made the earliest petroglyphs about 2,500 years ago, followed by the Early Pueblo culture, and Paiutes lived in the region when Mormons settled nearby in 1865. The park has 72 campsites, including RV sites with hookups, plus picnic areas, designated rock climbing areas, equestrian use, and group activities. A visitor center, open daily 9 a.m. to 4 p.m., has exhibits on geology, ecology, prehistory, and history. Several trails close May 15 through September 30 for visitor safety, and there is an annual maintenance closure December 1-14.