Great Basin National Park, National Park in White Pine County, Nevada, United States.

Great Basin National Park covers 77,180 acres in White Pine County, east-central Nevada, near the Utah border. It protects groves of ancient bristlecone pines, the Lehman Caves, and Wheeler Peak Glacier below 13,063-foot Wheeler Peak. The park is named for the Great Basin, the dry mountainous region between the Sierra Nevada and the Wasatch Mountains.

Congress established this area as a national park in 1986 to protect ancient pine forests and the Lehman Caves from degradation. The land served for over a century as open grazing and ranch ground before people recognized its wilderness value.

The park takes its name from the Great Basin, the dry region between the Sierra Nevada and the Wasatch Mountains. Its bristlecone pines are the oldest known living non-clonal organisms; a tree at the treeline near Wheeler Peak, nicknamed Prometheus, was at least 5,000 years old when it was cut down in 1964 by a graduate student and U.S. Forest Service personnel for research.

The park is most commonly entered via Nevada State Route 488, reached from the town of Baker off U.S. Routes 6 and 50. Developed campsites exist in the park, alongside backcountry camping options. Conditions differ greatly between the warm valleys and the cold high elevations, so pack clothing for a range of temperatures.

The thin crystalline shield formations in the cave systems rank among the rarest cave structures on Earth. These formations develop extremely slowly from mineral-rich water that drips over rock ledges.