Hammer Island

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Hammer Island
Aerial image of an island.
USGS aerial imagery of Hammer Island; is to the west, and Old River is to the east.
Hammer Island is located in Sacramento-San Joaquin River Delta
Hammer Island
Hammer Island
Geography
LocationNorthern California
Coordinates37°48′59″N 121°33′25″W / 37.81639°N 121.55694°W / 37.81639; -121.55694 (Hammer Island)[1]Coordinates: 37°48′59″N 121°33′25″W / 37.81639°N 121.55694°W / 37.81639; -121.55694 (Hammer Island)[1]
Adjacent bodies of waterSacramento–San Joaquin River Delta
Highest elevation0 ft (0 m)[1]
Administration
United States
State California
CountyContra Costa

Hammer Island is a small island in the Sacramento–San Joaquin River Delta, in Contra Costa County, California,[2][3][4][5] named after original owner Hans Hammer.[6] Its coordinates are

 WikiMiniAtlas
37°48′59″N 121°33′25″W / 37.81639°N 121.55694°W / 37.81639; -121.55694 (Hammer Island)[1],; the United States Geological Survey measured its elevation as 0 ft (0 m) in 1981,[1] and it appears on a 1978 USGS map.[7]

References[]

  1. ^ a b c d U.S. Geological Survey Geographic Names Information System: Hammer Island
  2. ^ "1877 County Boundary Error Will Be Corrected". Oakland Tribune. Oakland, California. 1955-05-08. p. 26.
  3. ^ "Page 73". The Argus. Fremont, California. 1976-06-27. p. 73.
  4. ^ "Strange Crop: Water Lilies Cause San Joaquin River Delta Problems". The Sacramento Bee. Sacramento, California. 1977-12-21. p. 10.
  5. ^ "Species". Napa Valley Register. Napa, California. 2020-04-17. p. B3.
  6. ^ "Funeral Today For Hans Hammer, Island Resident". Tracy Press. Tracy, California. 1960-05-23. p. 1.
  7. ^ United States Geological Survey (2015). "Clifton Court Forebay Quadrangle, California" (Map). United States Department of the Interior Geological Survey. 1:24000.
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