[custom_adv] In 1969, Kipahulu Valley and 'Ohe'o Gulch were added to Haleakala National Park, which stretches down from the crater's summit. 'Ohe'o means "Something Special", and it certainly is. When water levels are up, there are many more than 7 pools (as the inaccurate name suggests). When water levels are safe, there are many pools open to swimming. [custom_adv] Valley of Fire State Park is a public recreation and nature preservation area covering nearly 46,000 acres (19,000 ha) located 16 miles (26 km) south of Overton, Nevada. The state park derives its name from red sandstone formations, the Aztec Sandstone, which formed from shifting sand dunes 150 million years ago. These features, which are the centerpiece of the park's attractions, often appear to be on fire when reflecting the sun's rays. It is Nevada's oldest state park, as commemorated with Nevada Historical Marker #150. It was designated as a National Natural Landmark in 1968. [custom_adv] Oljato-Monument Valley is a census-designated place in Navajo County, Arizona, United States. The population was 154 at the 2010 census. [custom_adv] A boardwalk trail leads you through Cypress Swamp at milepost 122 on the Natchez Trace Parkway. The swamp is home to dozens of tupelo and bald cypress trees. Unlike many other species of trees, tupelo and bald cypress trees love watery bogs. The trees originally took root when the swamp was nearly dry and have thrived in a place that most trees cannot. [custom_adv] The battling forces of fire and ice created the Devils Postpile: over 400 unusually symmetrical columns of basalt towering six hundred feet high, on the eastern side of the sierras, just outside of Mammoth. ... Three geologic features make the Devils Postpile unique. [custom_adv] Grand Canyon Village is a census-designated place located on the South Rim of the Grand Canyon, in Coconino County, Arizona, in the United States. Its population was 2,004 at the 2010 Census. Located in Grand Canyon National Park, it is wholly focused on accommodating tourists visiting the canyon. [custom_adv] A hoodoo is a tall, thin spire of rock that protrudes from the bottom of an arid drainage basin or badland. Hoodoos typically consist of relatively soft rock topped by harder, less easily eroded stone that protects each column from the elements. They generally form within sedimentary rock and volcanic rock formations.