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Archipelago

    United States

    32°11′N 80°45′W

    Sea Islands

    The Sea Islands are a chain of over one hundred tidal and barrier islands on the Atlantic Ocean coast of the Southeastern United States in the states of South Carolina, Georgia and Florida, roughly between the mouths of the Santee and Nassau rivers.

    Trail, Cumberland Island, Georgia, USA
    Trail, Cumberland Island, Georgia, USA

    P. Hughes / CC BY-SA 4.0

    Chart

    16 landforms

    Overview

    The Sea Islands are a chain of over one hundred tidal and barrier islands on the Atlantic Ocean coast of the Southeastern United States in the states of South Carolina, Georgia and Florida, roughly between the mouths of the Santee and Nassau rivers. The islands are part of the historical area of the Gullah Geechee people and the Gullah-Geechee Cultural Heritage Corridor. All of the islands are acutely threatened by sea level rise due to climate change.

    From Wikipedia, CC BY-SA 4.0

    Census, cataloged

    • Major islands4
    • Minor islands12
    • Islets0
    • Rocks & skerries0

    Major islands

    4
    • Cumberland Island

      Cumberland Island

      Area
      86.1 km²
      High point
      38 m

      Cumberland Island, in the southeastern United States, is the largest of the Sea Islands of Georgia. The long-staple Sea Island cotton was first grown here by a local family, the Millers, who helped Eli Whitney develop the cotton gin. With its unusual range of wildlife, the island has been declared a National Seashore.

    • Johns Island

      Area
      217 km²

      Johns Island is an island in Charleston County, South Carolina, United States, and is the largest island in the state of South Carolina. Johns Island is bordered by the Wadmalaw, Seabrook, Kiawah, Edisto, Folly, and James islands; the Stono and Kiawah rivers separate Johns Island from its border islands.

    • Ossabaw Island

      Area
      105 km²

      S. state of Georgia approximately twenty miles by water south from the historic downtown of the city of Savannah. One of the largest of Georgia's barrier islands, Ossabaw contains 9,000 acres (3,600 ha) of wooded uplands with freshwater ponds and 16,000 acres (6,500 ha) of marshlands interlaced with tidal creeks.

    • Amelia Island

      Area
      47.1 km²
      High point
      4 m

      Amelia Island is a part of the Sea Islands chain that stretches along the East Coast of the United States from South Carolina to Florida; it is the southernmost of the Sea Islands, and the northernmost of the barrier islands on Florida's Atlantic coast. 4 km) wide at its widest point.

    Minor islands

    12
    • Fripp Island

      Area
      11.9 km²
      High point
      1 m
    • Morris Island

      Area
      3.4 km²
    • Bull Island

      Area
      —

      size unknown

    • Jekyll Island

      Area
      —

      size unknown

    • Little St. Simons Island

      Area
      —

      size unknown

    • Morgan Island

      Area
      —

      size unknown

    • North Island

      Area
      —

      size unknown

    • Port Royal Island

      Area
      —

      size unknown

    • Saint Helena Island

      Area
      —
      High point
      6 m

      size unknown

    • Sea Island

      Area
      —
      High point
      3 m

      size unknown

    • St. Catherines Island

      Area
      —

      size unknown

    • Wassaw Island

      Area
      —

      size unknown

    Figures

    Comparative heights

    Sea level10 m20 m30 m40 m38 mCumberland6 mSaint Helena4 mAmelia3 mSea1 mFripp
    High points by island, metres above sea level.
    • Cumberland: 38 m
    • Saint Helena: 6 m
    • Amelia: 4 m
    • Sea: 3 m
    • Fripp: 1 m

    Islands by area

    1101001,000Johns: 217 km²JohnsOssabaw: 105 km²OssabawCumberland: 86.1 km²CumberlandAmelia: 47.1 km²AmeliaFripp: 11.9 km²FrippMorris: 3.4 km²Morris
    km², log scale. 10 without a known area.
    Johns Island217 km²
    Ossabaw Island105 km²
    Cumberland Island86.1 km²
    Amelia Island47.1 km²
    Fripp Island11.9 km²
    Morris Island3.4 km²

    Sources

    Facts

    • Geometry, areas and high points: OpenStreetMap contributors (ODbL), Copernicus GLO-30, via Talus.
    • Wikidata
    • Wikipedia

    Photographs