<Tr> <Td_colspan="2"> Physiographic regions of the United States . The High Plains region is the center yellow area designated 13d . </Td> </Tr> <Tr> <Td_colspan="2"> Website: GeoKansas: High PLains </Td> </Tr> <P> The High Plains are a subregion of the Great Plains mostly in the Western United States, but also partly in the Midwest states of Nebraska, Kansas, and South Dakota, generally encompassing the western part of the Great Plains before the region reaches the Rocky Mountains . The High Plains are located in southeastern Wyoming, southwestern South Dakota, western Nebraska, eastern Colorado, western Kansas, eastern New Mexico, western Oklahoma, and south of the Texas Panhandle . The southern region of the Western High Plains ecology region contains the geological formation known as Llano Estacado which can be seen from a short distance or from on satellite maps . From east to west, the High Plains rise in elevation from around 1,160 feet (350 m) to over 7,800 feet (2,400 m). </P> <P> The term "Great Plains", for the region west of about the 96th or 98th meridian and east of the Rocky Mountains, was not generally used before the early 20th century . Nevin Fenneman's 1916 study, Physiographic Subdivision of the United States, brought the term Great Plains into more widespread usage . Prior to 1916, the region was almost invariably called the High Plains, in contrast to the lower Prairie Plains of the Midwestern states . Today the term "High Plains" is usually used for a subregion instead of the whole of the Great Plains . </P>

Where are the high plains located in texas
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