Silva Island

{{short description|Island in California}}

{{Infobox islands

| name = Silva Island

| image = File:Silva Island 2023-03-07.jpg

| image_size =

| image_caption = Silva Island in March 2023, as seen looking north along U.S. Route 101.

| image_alt = An photo of an island.

| pushpin_map = United States San Francisco Bay Area#USA California#USA

| pushpin_label =

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| coordinates = {{coord|37|53|15|N|122|30|54|W|region:US-CA_source:gnis-233122|display=it|name=Silva Island|notes=}}

| location = Northern California

| waterbody = San Francisco Bay

| area_sqmi =

| length_mi =

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| elevation_ft = 79

| elevation_footnotes =

| country = United States

| country_admin_divisions_title = State

| country_admin_divisions = {{flag|California}}

| country_admin_divisions_title_1 = County

| country_admin_divisions_1 = Marin

| country_admin_divisions_title_2 =

| country_admin_divisions_2 =

}}

Silva Island (also De Silva Island) 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 {{coord|37|53|15|N|122|30|54|W|region:US-CA_source:gnis-233122|display=inline|name=Silva Island|notes=}}, and the United States Geological Survey gives its elevation as {{cvt|79|ft|m}}.

Silva Island, USGS, 1897.png|USGS survey map (1:62500 scale) from 1897.

Silva Island, USGS, 1954.png|USGS survey map (1:24000 scale) from 1954.

File:Silva Island, California.jpg|An aerial photo taken in 2013, looking toward the east.