Rising from the desert, this mountain mass contains portions of the world's most extensive and significant Permian limestone fossil reef. Also featured are a tremendous earth fault, lofty peaks, unusual flora and fauna, and a colorful record of the past. Guadalupe Peak, highest point in Texas at 8,749 feet; El Capitan, a massive limestone formation; McKittrick Canyon, with its unique flora and fauna; and the "Bowl", located in a high country conifer forest, are significant park features. Established: September 30, 1972. Acreage: 86,416. The park is celebrated its 25th anniversary in 1997.

Two front-country campgrounds have tent and RV sites, water and rest rooms, but no showers or hookups. Ten back-country campgrounds require a free permit that may be obtained in person at the Headquarters Visitor Center or the Dog Canyon Ranger Station. No fires (including charcoal) allowed in park.