Geography | |
---|---|
Location | Northern California |
Coordinates | 37°59′51″N 121°26′56″W / 37.99750°N 121.44889°W [1] |
Adjacent to | Sacramento–San Joaquin River Delta |
Highest elevation | 3 ft (0.9 m) [1] |
Administration | |
United States | |
State | California |
County | San Joaquin |
Acker Island (also known as Lost Isle) [1] is a small island in the Sacramento–San Joaquin River Delta. [2] [3] [4] It is part of San Joaquin County, California. [5] [6] [7] [8] Its coordinates are 37°59′51″N 121°26′56″W / 37.99750°N 121.44889°W [1], and the United States Geological Survey measured its elevation as 3 ft (0.91 m) in 1981. It appears on a 1952 USGS map of the area. [9]