Mallard Island

From Wikipedia, the free encyclopedia

Coordinates38°02′31″N 121°55′07″W / 38.04194°N 121.91861°W / 38.04194; -121.91861 (Mallard Island)[1]
Adjacent toSuisun Bay
Highestelevation3 ft (0.9 m)[1]
Mallard Island
Aerial image of an island.
USGS aerial imagery of Mallard Island; Suisun Bay is to the north, and West Pittsburg is to the south across Mallard Slough.
Mallard Island is located in Sacramento-San Joaquin River Delta
Mallard Island
Mallard Island
Mallard Island is located in California
Mallard Island
Mallard Island
Mallard Island is located in the United States
Mallard Island
Mallard Island
Geography
LocationNorthern California
Coordinates38°02′31″N 121°55′07″W / 38.04194°N 121.91861°W / 38.04194; -121.91861 (Mallard Island)[1]
Adjacent toSuisun Bay
Highest elevation3 ft (0.9 m)[1]
Administration
United States
StateCalifornia
CountyContra Costa

Mallard Island is a small island in Suisun Bay, at the confluence of the Sacramento and San Joaquin rivers.[2][3][4][5][6][7][8][9][10][11][12][13][14] It is part of Contra Costa County, California. Its coordinates are 38°02′31″N 121°55′07″W / 38.04194°N 121.91861°W / 38.04194; -121.91861 (Mallard Island)[1], and the United States Geological Survey measured its elevation as 3 ft (0.91 m) in 1981.[1] It appears in a 1953 USGS map of the area.[15]

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