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Illinois River (Oklahoma) - Wikipedia, the free encyclopedia (284 words) |
 | The river is a major source of tourism in the area. |
 | The town of Tahlequah, Oklahoma on its banks was the western terminus of the Trail of Tears. |
 | The river is currently the source of a controversy between the two states, with Oklahoma blaming Arkansas for pollution in the river, most notoriously phosphorous contamination by sewage and poultry farm runoff. |
| Encyclopedia: Oklahoma (9888 words) |
 | Oklahoma is bounded on the east by Arkansas and Missouri, on the north by Kansas and northwest by Colorado (both at 37°N), on the far west by New Mexico (at 103°W), and on the south and near-west by Texas. |
 | Oklahoma's natural terrain is very diverse, ranging from oak and hickory mixed forest in the wetter eastern part of the state, to the post oak and fljack oak savannah territory of the Cross Timbers, to the plains and semi-arid regions of western Oklahoma and the panhandle. |
 | Oklahoma City is the principal economic engine of the state, centered on the finance, retail, governance, entertainment, and tourism sectors. |