Bird Island is an island in San Francisco Bay. It is in San Mateo County, California.[2][3][4][5][6][7][8] Its coordinates are 37°33′04″N 122°14′13″W / 37.55111°N 122.23694°W / 37.55111; -122.23694 (Bird Island)[1], and the United States Geological Survey gave its elevation as 7 ft (2.1 m) in 1998.[1] It appears on a 2012 USGS map of the area.[9]
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