Little Island (California)

Little Island
Aerial image of an island.
USGS aerial imagery of Little Island
Little Island is located in San Francisco Bay Area
Little Island
Little Island
Little Island is located in California
Little Island
Little Island
Little Island is located in the United States
Little Island
Little Island
Geography
LocationNorthern California
Coordinates38°10′48″N 122°21′05″W / 38.18000°N 122.35139°W / 38.18000; -122.35139 (Little Island)[1]
Adjacent toNapa River
Highest elevation3 ft (0.9 m)[1]
Administration
United States
State California
CountyNapa and Solano
Little Island as it appears on a 1951 USGS topographic map.
An aerial view, looking toward the west, of the Napa River where it flows into San Pablo Bay through Vallejo. Islands visible include, from bottom of image: Mare, No. 1, Knight, Russ, No. 2, Green, Bull, Edgerly, Coon, Little, and Tubbs.

Little Island is a partially submerged marsh island in the Napa Slough, branching off from the Napa River upstream of San Pablo Bay (an embayment of San Francisco Bay).[2][3][4][5] It is almost entirely in Napa County, California, although part of its southern tip is in Solano County; it is managed as part of the Napa-Sonoma Marshes Wildlife Area.[6][7] Its coordinates are 38°10′48″N 122°21′05″W / 38.18000°N 122.35139°W / 38.18000; -122.35139 (Little Island)[1], and the United States Geological Survey measured its elevation as 3 ft (0.91 m) in 1981.[1]

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