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Oklahoma History . Unit 1. Oklahoma covers nearly 70,000 square miles or 45 millions acres East/West border is 464 miles long and North/South border is 320 miles. 18 th in size in the US Larger than any state east of the Mississippi River 77 counties
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Oklahoma History Unit 1
Oklahoma covers nearly 70,000 square miles or 45 millions acres • East/West border is 464 miles long and North/South border is 320 miles. • 18th in size in the US • Larger than any state east of the Mississippi River • 77 counties • About 1,160 miles in from LA and Washington DC
Ten Geographic Regions: • High Plains • Gypsum Hills • Wichita Mountains • Red Bed Plains • Sandstone Hills • Arbuckle Mountains • Red River Plains • Ouachita Mountains • Prairie Plains • Ozark Plateau
Cross Timbers • Unique vegetation zone that cuts across several of Oklahoma’s geographical regions. • Consists of Post Oak and Blackjack Oak trees that grow so close together they form a natural barrier between western plains and eastern prairies. • Comanche and other Plains Indians stayed West of C.T. • Routes of even modern day interstates avoid C.T. area • Generally unproductive area calling for many farmers and residents to live in poverty – many socialists and radical political and religious ideas come from this area – think Woody Guthrie and Oral Roberts
Tornado Alley • Forecasting HUGE in Oklahoma…. • Storm watching a pastime of locals.. • Average of 53 tornadoes annually • May 3, 1999 • Twister • National Weather Service in Norman
Why Tornado Alley? • State located where three climatic regions meet • As cool air meets warm air what happens? • This happens frequently in Oklahoma allowing for more annual tornadoes than most places!
Fertile Soils • Some of the world’s most fertile soils is here in Oklahoma!!!! • Eastern OK – least productive • Great soils, adequate rain and good growing season allows for agricultural lifestyle in West
Riches of the Forest • Covers 1/5 of state. • Redbud, Pecan, Cottonwood, Dogwood, Walnut and Elm • Also, Oak, Hickory, and Cypress grow in OK • Harvesting of wooded areas for commercial purposes began after Civil War causing an increased need for railroads.
Salt Plains and Tallgrass Prairies • Great Salt Plains – Alfalfa County (120 sq mi.) • National Wildlife Refuge • Tallgrass Prairie “an immense extent of grassy, undulating…country with here and there a clump of trees, dimly seen in the distance like a ship at sea.” Washington Irving • Osage County – managed by the Nature Conservancy
Mesas and Mountains • Black Mesa – highest point in Oklahoma • Mount Scott - Lawton • Sugar Loaf Mountain
Wildlife • The number of native animal species to OK is probably larger than any equal area in US
Springs and Waterfalls • Sulphur Springs in Chickasaw Indian Land
Major Water • Lakes – many lakes in Oklahoma all recreation lakes man made in Oklahoma • McClellan – Kerr Navigation System – Made so Oklahoma rivers could be navigated – Specifically the Arkansas River • Groundwater: aquifers provide more than half of Oklahoma with fresh water. • Ogallala most important aquifer to Oklahoma for irrigation .
Geological Basins, Energy Deposits • As mountains push upward other parts of the earth form depressions or basins. • The Great Plains is one of these Basins • Energy deposits: Anadarko Basin and Arkoma Basin.
Gypsum and Salt and Reptiles • As ancient seas evaporated they left behind thick deposits of gypsum and salt. • Remains of huge dinosaurs found in the panhandle. These remains are from the Jurassic Period. • These are found in the Sam Noble Oklahoma Museum of Natural History.
Why is this important? • Well, what if it never happened like this? • All these things happened and have shaped Oklahoma for the place it is now. • great place for crops, • huge reservoirs of water for its inhabitants, • natural resources to help keep America from being solely dependent on other places for energy