Knight Island
Aerial image of an island.
USGS aerial imagery of Knight Island
Knight Island is located in San Francisco Bay Area
Knight Island
Knight Island
Knight Island is located in California
Knight Island
Knight Island
Knight Island is located in the United States
Knight Island
Knight Island
Geography
LocationNorthern California
Coordinates38°08′09″N 122°17′58″W / 38.13583°N 122.29944°W / 38.13583; -122.29944 (Knight Island)[1]
Adjacent toNapa River
Highest elevation3 ft (0.9 m)[1]
Administration
United States
State California
CountySolano
Knight Island as it appears on a 1951 USGS topographic map.
An aerial view, looking toward the west, of the Napa River where it flows into San Pablo Bay through Vallejo. Islands visible include, from bottom of image: Mare, No. 1, Knight, Russ, No. 2, Green, Bull, Edgerly, Coon, Little, and Tubbs.

Knight Island is a mostly-submerged island in the Napa River, upstream of San Pablo Bay (an embayment of San Francisco Bay).[2][3][4] It is in Solano County, California, and managed as part of the Napa-Sonoma Marshes Wildlife Area.[5][6] Its coordinates are 38°08′09″N 122°17′58″W / 38.13583°N 122.29944°W / 38.13583; -122.29944 (Knight Island)[1], and the United States Geological Survey measured its elevation as 3 ft (0.91 m) in 1981.[1]

References

  1. ^ a b c d U.S. Geological Survey Geographic Names Information System: Knight Island
  2. ^ California State Automobile Association (1999). San Francisco Bay Region (Map). 1:190,000. American Automobile Association.
  3. ^ "Salt plant will involve expenditure of $3,500,000". The Napa Valley Register. Napa, California. 1952-05-14. p. 16.
  4. ^ "In Days Gone By: 25 Years Ago". The Napa Valley Register. Napa, California. 1975-07-24. p. 4.
  5. ^ "Directional Map Napa-Sonoma Marshes Wildlife Area". California Department of Fish and Wildlife, Bay Delta Region. May 2019. Archived from the original on 23 April 2020. Retrieved 26 February 2021.
  6. ^ URS Corporation (May 2019). "Napa-Sonoma Marshes Wildlife Area Land Management Plan". California Department of Fish and Game. Retrieved 26 February 2021.


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