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History of Okefenokee Swamp



The swamp was formed over the past 6,500 years by the accumulation of peat in a shallow basin on the edge of an ancient Atlantic coastal terrace, the geological relic of a Pleistocene estuary. The swamp is bordered by Trail Ridge, a strip of elevated land believed to have formed as coastal dunes or an offshore barrier island. The St. Marys River and the Suwanee River both originate in the swamp. The Suwanee River originates as stream channels in the heart of Okefenokee Swamp and drains at least 90% of the swamp's watershed southwest towards the Gulf of Mexico. The St. Marys River, which drains
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