Shima Tract

The Shima Tract is an island in the Sacramento–San Joaquin River Delta. It is part of San Joaquin County, California, and managed by Reclamation District 2115. Its coordinates are 38.02778°N, -121.385°W, and the United States Geological Survey measured its elevation as 0 ft in 1981. It appears on a 1952 USGS map of the area.

The Shima Tract was owned by (and takes its name from) George Shima, a businessman and farmer who at one point produced 85% of California's potato crop.