Browns Island (Contra Costa County)

Browns Island
An aerial photo of two islands.
An aerial photo of Browns Island (on the left). Winter Island is on the right of the image, and Antioch is on the bottom.
Browns Island is located in Sacramento-San Joaquin River Delta
Browns Island
Browns Island
Browns Island is located in San Francisco Bay Area
Browns Island
Browns Island
Browns Island is located in California
Browns Island
Browns Island
Browns Island is located in the United States
Browns Island
Browns Island
Geography
LocationSuisun Bay
Coordinates38°02′20″N 121°51′53″W / 38.03881°N 121.86468°W / 38.03881; -121.86468
Area595 acres (241 ha)
Highest elevation0 m (0 ft)[1]
Administration
United States
U.S. stateCalifornia
CountyContra Costa County
CityPittsburg
Demographics
Population0

Browns Island (also Gwin Island or Brown Island)[1] is a regional preserve of the East Bay Regional Park District (EBRPD) in Pittsburg, Contra Costa County, California, United States. It is an island in Suisun Bay, part of the Sacramento-San Joaquin River Delta,[a] separated from the rest of Pittsburg by New York Slough.

The 595-acre (241 ha)[3] island is separated from Winter Island to the east by Middle Slough, and bounded by New York Slough on the south and Suisun Bay on the west and northwest. It is shown, labeled "Gwin Island", on an 1850 survey map of the San Francisco Bay area made by Cadwalader Ringgold[4] and an 1854 map of the area by Henry Lange.[5]

The East Bay Regional Park District has published a guide to the wild plants that grow on this island.[6] The island is home to six rare and endangered plant species, and a variety of aquatic birds.[2]

  1. ^ a b Cite error: The named reference gnis was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference EBRPD was invoked but never defined (see the help page).
  3. ^ "Browns Island". East Bay Regional Parks District. Retrieved 2016-10-12.
  4. ^ Cite error: The named reference survey1850 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference map1854 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference EBRPD-BIF was invoked but never defined (see the help page).


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