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Welcome to the Encyclopedia of Arkansas
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This Day in Arkansas History
June 5, 1971
President Richard M. Nixon was the keynote speaker for the dedication at the Tulsa Port of Catoosa in Oklahoma of the McClellan-Kerr Arkansas River Navigation System. Senator John L. McClellan, Congressman Wilbur D. Mills, and Speaker of the House Carl Albert of Oklahoma were in attendance. The system, comprising seventeen locks and dams over a 443-mile span of the Arkansas River from Catoosa, Oklahoma, through Arkansas to the Mississippi River, was designed as an aid to flood control, navigation, and recreation. It also benefits Arkansas with hydropower potential, wildlife conservation, and water supply, as well as by adding billions of dollars annually in trade transportation in Arkansas and Oklahoma.
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About the Encyclopedia
The CALS Encyclopedia of Arkansas is a free, authoritative source of information about the rich history, geography, and culture of Arkansas. It is updated regularly to ensure the people of Arkansas have an accurate and accessible resource to explore our heritage. We invite you to browse our text entries and media galleries to learn more about the people, places, events, legends, and lore of the 25th state. We are continually adding new entries, photographs, maps, videos, quizzes, lesson plans, and more, so check back frequently to see what’s new.
Our overview page covers everything you would want to know about our beautiful state, including state symbols, demographics, and more!
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