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 . The United States Geological Survey measured its elevation as in 1981. It appears on 1913 and 2015 USGS map of the area.
The Rough and Ready Island Naval Supply Depot was located on the island. After the base's closure, the island was transferred to the Port of Stockton.recordnet.com, Ready, no longer Rough, Navy will turn over rest of island to port, By Reed Fujii, Aug. 15, 2010
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