![Rough and Ready Island Rough and Ready Island](/modules/owlapps_apps/img/nopic.jpg)
Rough and Ready Island is an island in the San Joaquin River, in the Sacramento–San Joaquin River Delta. It is in San Joaquin County, California, and its coordinates are 37°57′03″N 121°21′41″W. The United States Geological Survey measured its elevation as 0 ft (0 m) in 1981. It appears on 1913 and 2015 USGS map of the area.
The Rough and Ready Island Naval Supply Depot is located on the island.
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