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Nassau River - St. Johns River Marshes and Ft. Clinch Aquatic Preserves Quick Topics

"Situated amidst growing developmental pressure, these beautiful, natural and cultural areas require special attention and protection."


Nassau and Duval counties


77,000 acres of sovereign submerged lands


505 Guana River Road
Ponte Vedra Beach, FL 32082
(904) 823-4500



  • These areas are dominated by salt marsh through which frequent tidal flushing ensures the continuous transport of nutrients in and out of the estuary.
  • Oyster bars, tidal flats, and beaches are also integral parts of these dynamic systems.
  • Provides critical habitat to a wide variety of fish and wildlife, including endangered species, such as sea turtles, bald eagles, wood storks, least terns, Florida manatees and right whales.
  • More than 100 sites of archaeological and cultural significance have been identified.
  • The earliest inhabitants, the Timucuan Indians date back to 3500 BC, and were able to survive here because of the productive marsh areas.
  • Shellfish such as clams, mussels, oysters and whelks provided not only food for the Timucuan, but materials for tool making as well.


Last updated: August 08, 2017

  3900 Commonwealth Boulevard M.S. 235 Tallahassee, Florida 32399 850-245-2094
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