Green Island (California)
Green Island is an island in the Napa River, upstream of San Pablo Bay (an embayment of San Francisco Bay).[2][3][4][5][6][7][8][9][10][11][12][13][14] It is in Napa County, California, and managed as part of the Napa-Sonoma Marshes Wildlife Area.[15][16] Its coordinates are 38°12′09″N 122°18′16″W[1], and the United States Geological Survey measured its elevation as 23 ft (7.0 m) in 1981.[1] It, long with Island No. 1, Island No. 2 and Tubbs Island, are labeled on a 1902 USGS map of the area.[17]
![]() USGS aerial imagery of Green Island | |
![]() Green Island ![]() Green Island ![]() Green Island | |
| Geography | |
|---|---|
| Location | Northern California |
| Coordinates | 38°12′09″N 122°18′16″W[1] |
| Adjacent bodies of water | Napa River |
| Highest elevation | 23 ft (7 m)[1] |
| Administration | |
United States | |
| State | |
| County | Napa |

Green Island as it appears on a 1951 USGS topographic map.
References
- U.S. Geological Survey Geographic Names Information System: Green Island
- "Town and County". Napa County Reporter. Napa, California. 1883-03-02. p. 3.
- "Saturday". Napa Journal. Napa, California. 1890-07-26. p. 3.
- "Petitions are Filed". Napa Journal. Napa, California. 1905-12-17. p. 1.
- "Wanted". Napa Journal. Napa, California. 1908-12-09. p. 4.
- "Auction Sale Near Napa Next Sunday". Napa Journal. Napa, California. 1927-10-06. p. 5.
- "County Clerk Holds Hearing in Land Suit". The Napa Valley Register. Napa, California. 1930-09-18. p. 2.
- "Railroad Co. Files Denial". Napa Journal. Napa, California. 1933-07-16. p. 1.
- "Tenant at Bass Resort Loses Court Appeal". The Napa Valley Register. Napa, California. 1934-07-13. p. 1.
- "Clearing Weather Predicted as Flood Damage Mounts Throughout State". The Napa Valley Register. Napa, California. 1938-02-14. p. 8.
- "Profile: Hubert Fruehauf Is Farm, Civic Leader". The Napa Valley Register. Napa, California. 1953-09-03. p. 11.
- "Cities Agree On Giving Up 14 1/2 Cents". The Napa Valley Register. Napa, California. 1956-11-21. p. 1.
- "Salt Farming, Napa's Newest Crop-Raising Enterprise". Napa Journal. Napa, California. 1959-06-18. p. 1.
- "River Landmark Soon To Disappear". The Napa Valley Register. Napa, California. 1962-11-14. p. 17.
- "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.
- URS Corporation (May 2019). "Napa-Sonoma Marshes Wildlife Area Land Management Plan". California Department of Fish and Game. Retrieved 26 February 2021.
- Goode, R.U.; Fletcher, L.C. (1902), Topography, State of California: Woodward Island Quadrangle, United States Geological Survey
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