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The Cross Timbers are defined by the United States Environmental Protection Agency as Ecoregion 29, a Level III ecoregion.Some organizations and maps refer to the Cross Timbers ecoregion as the Central Oklahoma/Texas Plains. [4]
The Central Great Plains are a prairie ecoregion of the central United States, part of North American Great Plains. The region runs from west-central Texas through west-central Oklahoma, central Kansas, and south-central Nebraska. It is designated as the Central and Southern Mixed Grasslands ecoregion by the World Wide Fund for Nature.
Situated between the Great Plains and the Ozark Plateau in the Gulf of Mexico watershed, [6] Oklahoma tends to slope gradually downward from its western to eastern boundaries. [ 2 ] [ 7 ] Its highest and lowest points follow this trend, with its highest peak, Black Mesa , at 4,368 feet (1,516 m) above sea level, situated near the far northwest ...
Shortridge, James R. "The heart of the prairie: Culture areas in the central and northern Great Plains." Great Plains Quarterly (1988): 206–221. online; Turner, B. L., et al. "An investigation into land use changes and consequences in the Northern Great Plains using systems thinking and dynamics." (2013). online; Wood, Frances Elizabeth, and ...
U.S. Census Bureau regions and divisions. Since 1950, the United States Census Bureau defines four statistical regions, with nine divisions. [1] [2] The Census Bureau region definition is "widely used ... for data collection and analysis", [3] and is the most commonly used classification system.
Central Oklahoma is a humid-subtropical region dominated by the Cross Timbers, an area of prairie and patches of forest at the eastern extent of the Great Plains. [2] The region is essentially a transition buffer between the wetter and more forested Eastern Oklahoma and the semi-arid high plains of Western Oklahoma, and experiences extreme swings between dry and wet weather patterns.
Mid-June 2024 wheat harvest update for central Oklahoma According to the Oklahoma Wheat Commission: El Reno, harvest 70% complete: "Yields in the region ranging from the mid 40’s to the mid 50 ...
The Ogallala Aquifer (oh-gə-LAH-lə) is a shallow water table aquifer surrounded by sand, silt, clay, and gravel located beneath the Great Plains in the United States. As one of the world's largest aquifers, it underlies an area of approximately 174,000 sq mi (450,000 km 2) in portions of eight states (South Dakota, Nebraska, Wyoming, Colorado, Kansas, Oklahoma, New Mexico, and Texas). [1]