//
Photo: John Fowler from Placitas, NM, USA, CC BY 2.0 via Wikimedia Commons
Here you can marvel at some rather majestic rock formations weathered by the forces of nature, including sites like Mouse's Tank, Elephant Rock, Atlatl Rock, and the White Domes. The visitor center and web page can orient you to the intricacies therein.
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 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.
© OpenStreetMap contributors
Within Lake Mead National Recreation Area, this marks the former site of the town of St. Thomas, which was abandoned as the waters of Lake Mead rose. See foundations and ruins with interpretive displays. Requires walking a mile or so to site.
Another refuge that preserves habitat close to Lake Mead that offers a chance to see roadrunners and other bird life. You can even camp here for free.
Preserves artifacts of the ancient Anasazi people that were threatened with the creation of Lake Mead, from sites like Pueblo Grande de Nevada, for instance.
Moapa Valley National Wildlife Refuge
This area preserves a natural oasis with thermal springs, where endangered dace fish live, and palm trees that you can explore with a 2/3-mile interpretive trail. Across Warm Springs Road is the Moapa Valley National Wildlife Refuge.