Simms Island

Simms Island
A photo of an intersection with several cars at a red light.
The former location of Simms Island in March 2023.
Simms Island is located in San Francisco Bay Area
Simms Island
Simms Island
Simms Island is located in California
Simms Island
Simms Island
Simms Island is located in the United States
Simms Island
Simms Island
Geography
LocationNorthern California
Coordinates37°57′33″N 122°30′18″W / 37.95917°N 122.50500°W / 37.95917; -122.50500 (Simms Island)[1]
Adjacent toSan Francisco Bay
Highest elevation13 ft (4 m)[1]
Administration
United States
State California
CountyMarin

Simms Island is a former marsh island in San Francisco Bay.[2] It is in Marin County, California; Its coordinates are 37°57′33″N 122°30′18″W / 37.95917°N 122.50500°W / 37.95917; -122.50500 (Simms Island)[1], and the United States Geological Survey (USGS) gave its elevation as 13 ft (4.0 m) in 1981.[1] It appears as an island on a USGS map in 1897;[3] it is labeled in a 1954 map, but fully connected to the mainland.[4]

  • USGS survey map from 1897.
    USGS survey map from 1897.
  • USGS survey map from 1954.
    USGS survey map from 1954.
  • USGS aerial imagery from 2021.
    USGS aerial imagery from 2021.

References

  1. ^ a b c d U.S. Geological Survey Geographic Names Information System: Simms Island
  2. ^ "Neighborhood News". The Petaluma Courier. Petaluma, California. 1890-12-17. p. 2.
  3. ^ Gannett, Henry; Goode, R.U.; Marshall, R.B. (1896). "California: Tamalpais Sheet". United States Geological Survey. Retrieved 18 September 2021.
  4. ^ United States Geological Survey (1954). "San Rafael Quadrangle, California" (Map). United States Department of the Interior Geological Survey. 1:24000.


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