Great Basin National Park

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  • Topic: Desert, Great Basin, Utah
  • Pages : 3 (915 words )
  • Download(s) : 466
  • Published : June 19, 2011
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Great Basin National Park includes the desert, sagebrush, the dark night skies, caves, and 5,000 year-old bristlecone pine trees. “Great Basin starts with the water flows (hydrographic), the landscape formed (geologic), or the resident plants and animals (biologic). The Hydrographic Great Basin is a 200,000 square mile area drains internally.”(1) The Great Basin surrounded by the Wasatch Mountains to the east, the Sierra Nevada to the west, and the Snake River Plain to the north. The Great Basin includes big part of Nevada, half of Utah, and some parts of Idaho, Wyoming, Oregon, and California. The Basin and Range region developed by geological forces stretching the earth's crust, and most of north-south mountains ranges created. These ranges separated by flat valleys or basins. The biologic communities are not same with different elevation on the mountain ranges, and the individual ranges look like islands isolated by desert vegetation. Great Basin shows diversity of species because of the elevation changes. All parks have been threaded from nonnative species, pollution, and incompatible uses of resources in and around parks. Some of the threats are; groundwater pumping from neighboring valleys that may dry up park springs, proposed coal-fired power plants nearby that may degrade air and water quality, cheat grass has negative effects on many native plant species, and global climate change that could cause loss the plant and animal communities of the park. “Some caves contain formations such as folia, bulbous stalactites, anthodites, and shields. The park has high-elevation vertical shafts and horizontal solution caves that have formed along fracture planes.”(1) The Lehman Caves are only open to the public. All other caves not permitted and stay closed to protect their ecosystems. Most of the caves may have formed together either hydrological and structurally. “The rocks exposed in this range formed of sediments like sand, mud and limey ooze (silt and clay...
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