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Archipelago

    Suisun BayUnited States

    38°03′N 122°03′W

    Seal Islands

    Seal Islands are a pair of islands in Suisun Bay at the mouth of the Sacramento-San Joaquin River Delta in Contra Costa County, California, 10 km east of Benicia, and 500 metres off-shore from the former Concord Naval Weapons Station and Port Chicago Naval Magazine.

    Overview

    Seal Islands are a pair of islands in Suisun Bay at the mouth of the Sacramento-San Joaquin River Delta in Contra Costa County, California, 10 km east of Benicia, and 500 metres off-shore from the former Concord Naval Weapons Station and Port Chicago Naval Magazine.

    From Wikipedia, CC BY-SA 4.0

    Census, cataloged

    Also in the area

    18

    Inside the group's outline but not confirmed as members by any source.

    • Roe Island2 m · 0.9 km²
    • Unnamed island2 m · 0.88 km²
    • Unnamed island2 m · 0.7 km²
    • Unnamed island3 m · 0.62 km²
    • Unnamed island2 m · 0.41 km²
    • Ryer Island2 m · 0.24 km²
    • Unnamed island2 m · 0.23 km²
    • Unnamed island2 m · 0.07 km²
    • Unnamed island1 m · 0.03 km²
    • Unnamed island2 m · 0.6 ha
    • Unnamed island1 m · 0.4 ha
    • Unnamed island1 m · 0.3 ha

    Figures

    Comparative heights

    Sea level1 m1 m2 m2 m2 mRoe2 mRyer
    High points by island, metres above sea level.

    Islands by area

    0.00010.0010.010.11Roe: 0.9 km²RoeUnnamed island: 0.88 km²Unnamed islandUnnamed island: 0.7 km²Unnamed islandUnnamed island: 0.62 km²Unnamed islandUnnamed island: 0.41 km²Unnamed islandRyer: 0.24 km²RyerUnnamed island: 0.23 km²Unnamed islandUnnamed island: 0.07 km²Unnamed islandUnnamed island: 0.03 km²Unnamed islandUnnamed island: 0.6 haUnnamed islandUnnamed island: 0.4 haUnnamed islandUnnamed island: 0.3 haUnnamed islandUnnamed island: 0.2 haUnnamed islandUnnamed island: 0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed islandUnnamed island: <0.1 haUnnamed island
    km², log scale
    Roe Island0.9 km²
    Unnamed island0.88 km²
    Unnamed island0.7 km²
    Unnamed island0.62 km²
    Unnamed island0.41 km²
    Ryer Island0.24 km²
    Unnamed island0.23 km²
    Unnamed island0.07 km²
    Unnamed island0.03 km²
    Unnamed island0.6 ha
    Unnamed island0.4 ha
    Unnamed island0.3 ha
    Unnamed island0.2 ha
    Unnamed island0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha
    Unnamed island<0.1 ha

    Sources

    Facts

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