The Rio Blanco Tract is an island in the Sacramento–San Joaquin River Delta.[2][3] It is part of San Joaquin County, California, and managed by Reclamation District 2114.[4][5][6] Its coordinates are 38°04′46″N 121°24′18″W / 38.07944°N 121.40500°W / 38.07944; -121.40500 (Rio Blanco Tract)[1], and the United States Geological Survey measured its elevation as 0 ft (0 m) in 1981.[1] It appears on a 1952 USGS map of the area.[7]

Rio Blanco Tract
Aerial image of an island.
USGS aerial imagery of the Rio Blanco Tract
Rio Blanco Tract is located in Sacramento-San Joaquin River Delta
Rio Blanco Tract
Rio Blanco Tract
Rio Blanco Tract is located in California
Rio Blanco Tract
Rio Blanco Tract
Rio Blanco Tract is located in the United States
Rio Blanco Tract
Rio Blanco Tract
Geography
LocationNorthern California
Coordinates38°04′46″N 121°24′18″W / 38.07944°N 121.40500°W / 38.07944; -121.40500 (Rio Blanco Tract)[1]
Adjacent toSacramento–San Joaquin River Delta
Highest elevation0 ft (0 m)[1]
Administration
United States
State California
CountySan Joaquin

References

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  1. ^ a b c d U.S. Geological Survey Geographic Names Information System: Rio Blanco Tract
  2. ^ "Shima Adds to Big Holdings in Delta". The Sacramento Bee. Sacramento, California. 1920-12-14. p. 6.
  3. ^ "Grape Growers Lose In Aerial Spraying Battle". The Sacramento Bee. Sacramento, California. 1963-03-05. p. 28.
  4. ^ "Municipal Service Review: Selected San Joaquin County Reclamation Districts" (PDF). San Joaquin Local Agency Formation Commission. E Mulberg & Associates. 18 March 2018. Archived (PDF) from the original on 14 March 2021. Retrieved 24 February 2021.
  5. ^ "Reclamation Districts Map" (PDF). San Joaquin County Geographic Information Systems. San Joaquin County. 16 September 2020. Archived (PDF) from the original on 24 November 2020. Retrieved 24 February 2021.
  6. ^ "Storm". The Modesto Bee. Modesto, California. 1982-12-01. p. 2.
  7. ^ United States Geological Survey (1952). "Terminous Quadrangle, California" (Map). United States Department of the Interior Geological Survey. 1:24000.