Day Island
Day Island in March 2023
Day Island is located in San Francisco Bay Area
Day Island
Day Island
Day Island is located in California
Day Island
Day Island
Day Island is located in the United States
Day Island
Day Island
Geography
LocationNorthern California
Coordinates38°06′13″N 122°29′26″W / 38.10361°N 122.49056°W / 38.10361; -122.49056 (Day Island)[1]
Adjacent toSan Pablo Bay
Highest elevation105 ft (32 m)[1]
Administration
United States
State California
CountyMarin
Day Island in a USGS topographic map from 1951[2]
Aerial image of an island.
USGS aerial imagery of Day Island in 2021

Day Island is an island at the mouth of the Petaluma River in San Pablo Bay (an embayment of San Francisco Bay).[3][4][5][6][7][8] It is part of Marin County, California.[9][10][11][12][13][14][15][16] Its coordinates are 38°06′13″N 122°29′26″W / 38.10361°N 122.49056°W / 38.10361; -122.49056 (Day Island)[1], and the United States Geological Survey measured its elevation as 105 ft (32 m) in 1981.[1] It appears on a 1951 USGS map of the area, although it appears on maps from as old as 1873.[2] The "1880 History of Marin County" by Alley, Bowen and Co. mentions "a man by name of Day" who "settled on an island in Novato township which has since borne his name" in 1851." To this day, there are still 2 houses on the island, both inhabited. The island is bordered by dirt and two lagoons to the west, and marshlands to the east, although it was once entirely surrounded by either marshland or water.[17]

References

  1. 1 2 3 4 U.S. Geological Survey Geographic Names Information System: Day Island
  2. 1 2 United States Geological Survey (1951). "Petaluma Point Quadrangle, California" (Map). United States Department of the Interior Geological Survey. 1:24000.
  3. ↑ "Beach Quiet, But Other Areas Hit By Burglars". Daily Independent Journal. San Rafael, California. 1955-04-12. p. 15.
  4. ↑ "$100 In Firearms Reported Stolen". Daily Independent Journal. San Rafael, California. 1955-10-25. p. 7.
  5. ↑ "Faulkner Heirs Sued By Bank For $51,110". Daily Independent Journal. San Rafael, California. 1957-05-27. p. 2.
  6. ↑ "Black Point Asking Sewer Plan Review". Daily Independent Journal. San Rafael, California. 1966-02-04. p. 8.
  7. ↑ "Owners Fight To Keep Black Point Operations". Daily Independent Journal. San Rafael, California. 1967-08-21. p. 16.
  8. ↑ "Free Speech Hall Policy Is On Agenda". Daily Independent Journal. San Rafael, California. 1967-09-02. p. 6.
  9. ↑ "Black Point Rezone Vote Is Postponed". Daily Independent Journal. San Rafael, California. 1967-10-24. p. 11.
  10. ↑ "Legal notice: notice of hearing". Daily Independent Journal. San Rafael, California. 1967-10-27. p. 34.
  11. ↑ "Waterfront Parcel Rezoning Is Rejected". Daily Independent Journal. San Rafael, California. 1967-11-06. p. 17.
  12. ↑ "Legal notice: notice of hearing". Daily Independent Journal. San Rafael, California. 1967-11-10. p. 34.
  13. ↑ "Inadequate controls over tidelands". Daily Independent Journal. San Rafael, California. 1969-05-05. p. 20.
  14. ↑ "Legal notice: notice of hearing". Daily Independent Journal. San Rafael, California. 1969-06-13. p. 34.
  15. ↑ "Novato Gal's Huge Marlin Sets Record". Daily Independent Journal. San Rafael, California. 1973-09-01. p. 8.
  16. ↑ "Open Space Suggestions Into Plan". Daily Independent Journal. San Rafael, California. 1974-09-21. p. 4.
  17. ↑ "Marin County". www.davidrumsey.com. Retrieved 2023-03-08.


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