â¢ ACCRETION (noun) The noun ACCRETION has 6 senses: 1. an increase by natural growth or addition. 2. something contributing to growth or increase. 3. (astronomy) the formation of a celestial object by the effect of gravity pulling together surrounding objects and gases.
The Great Basin Visitor Center is located on Nevada State Route 487 in the town of Baker. The Lehman Caves Visitor Center is located on Nevada State Route 488. It is 5.5 miles (8.9 km) from Baker, Nevada, 1â2 mile (800 m) inside the park boundary.
What is the Great Basin? The Great Basin covers most of Nevada and parts of Utah, Oregon, Idaho and California. Generally, its east boundary is the Wasatch Mountains of Utah and the western edge is formed by the Sierra Nevada and Cascade Mountains that create a rain shadow over much of the Great Basin, preventing many Pacific storms from reaching the region.