Silva Island (also De Silva Island)[2][3] is an island in San Francisco Bay, formerly completely separated from the mainland but now mostly connected. It is in Marin County, California. Its coordinates are 37°53′15″N 122°30′54″W[1], and the United States Geological Survey gives its elevation as 79 ft (24 m).[1]

• 
  USGS survey map (1:62500 scale) from 1897.
• 
  USGS survey map (1:24000 scale) from 1954.

Silva Island

An aerial photo taken in 2013, looking toward the east.
Silva Island Show map of San Francisco Bay Area Silva Island Show map of California Silva Island Show map of the United States
Geography
Location	Northern California
Coordinates	37°53′15″N 122°30′54″W[1]
Adjacent to	San Francisco Bay
Highest elevation	79 ft (24.1 m)[1]
Administration
United States
State	California
County	Marin

References

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