![]() Silva Island in March 2023, as seen looking north along U.S. Route 101. | |
Geography | |
---|---|
Location | Northern California |
Coordinates | 37°53′15″N 122°30′54″W / 37.88750°N 122.51500°W[1] |
Adjacent to | San Francisco Bay |
Highest elevation | 79 ft (24.1 m)[1] |
Administration | |
United States | |
State | ![]() |
County | Marin |
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 / 37.88750°N 122.51500°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.
-
An aerial photo taken in 2013, looking toward the east.