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Sigma KEE - GreatBasin
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Great Basin
The GreatBasin is the largest area of contiguous endorheic watersheds, those with no outlets to the ocean, in NorthAmerica. It spans nearly all of Nevada, much of Utah, and portions of California, Idaho, Oregon, Wyoming, and Baja California. It is noted for both its arid climate and the basin and range topography that varies from the North American low point at Badwater Basin in Death Valley to the highest point of the contiguous United States, less than 100 miles (160 km) away at the summit of Mount Whitney. [Wikipedia]
Relationships      
InstancesbasinA Basin is an area of land enclosed or partially enclosed by higher land.
 endorheic basinAn EndorheicBasin is a drainage Basin that normally retains water and allows no outflow to other external BodyOfWater (such as Rivers and Oceans). Instead, the water drainage flows into permanent and seasonal lakes and swamps that equilibrate through evaporation.[Wikipedia]
 entityThe universal class of individuals. This is the root node of the ontology.
 geographic areaA geographic location, generally having definite boundaries. Note that this differs from its immediate superclass Region in that a GeographicArea is a three-dimensional Region of the earth. Accordingly, all astronomical objects other than earth and all one-dimensional and two-dimensional Regions are not classed under GeographicArea.
 land formA LandForm is the class of geographically and/or geologically distinct areas that occur on Earth's surface, including mountains, hills, plains, valleys, deltas, and features of submerged land areas such as the ocean floor.
 objectCorresponds roughly to the class of ordinary objects. Examples include normal physical objects, geographical regions, and locations of Processes, the complement of Objects in the Physical class. In a 4D ontology, an Object is something whose spatiotemporal extent is thought of as dividing into spatial parts roughly parallel to the time-axis.
 physicalAn entity that has a location in space-time. Note that locations are themselves understood to have a location in space-time.
 regionA topographic location. Regions encompass surfaces of Objects, imaginary places, and GeographicAreas. Note that a Region is the only kind of Object which can be located at itself. Note too that Region is not a subclass of SelfConnectedObject, because some Regions, e.g. archipelagos, have parts which are not connected with one another.
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