Atherton Island

Atherton Island is a small island in the Sacramento–San Joaquin River Delta. It is in unincorporated San Joaquin County, California, part of Stockton. Its coordinates are 37.95611°N, -121.35028°W, and the United States Geological Survey measured its elevation as 13 ft in 1999. It appears on a 2015 USGS map of the area.