Our River


The St. Marys River is a blackwater river which runs 126 miles from its origin in the Okefenokee Swamp to its mouth between Cumberland Island, Georgia and Amelia Island Florida.
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The St. Marys River played a crucial role in the settlement of southeast Georgia and northeast Florida. The natives’ name for the St. Mary’s River was “THLATHLOTHLAGUPHKA,”
which means, “Rotten Fish.”
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Riverkeeper Story

See our St. Marys River and learn more about St. Marys Riverkeeper through pictures and videos
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The St. Marys River is 130 miles lond and winds through four counties in two states. More than 160,00 residents depend on the health of the river for tourism, recreation, and commercial fishing. Wildlife and plant ecosystems rely on the continued cleanliness of the watershed. Let’s do our part to ensure a healthy St. Marys River for all who depend on it!