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Oklahoma - Wikipedia, the free encyclopedia |
 | | These ecoregions are: Western high plains, Southwestern Tablelands, Central Great Plains, Tall Grass Prairie, Cross Timbers, Caves and Prairie, Ozark Highlands, Ozark Forest, Hardwood Forest, Ouachita Mountains, and Cypress Swamps and Forests. |
 | | Primary interstate highways in Oklahoma include I-35, which traverses the state from north to south, I-40, which traverses the state from east to west, and I-44, which enters Oklahoma in the northeast and leaves the state toward the southwest. |
 | | The state's other two interstate highways, interstates 244 and 444, form what is called the "inter-dispersal" loop in Tulsa off of I-44. |
| en.wikipedia.org /wiki/Oklahoma (5580 words) |
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