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1978 Map of Bouldin Island

Name: 1978 Topographic Map of Bouldin Island
Creator: U.S. Geological Survey
Published: 1993
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1993

About this map

The Mokelumne River and San Joaquin River converge in this intricate delta landscape, where land is defined by a complex network of sloughs, cuts, and reaches. This 1978 survey highlights the reclaimed island tracts that form the heart of the California Delta, including Bouldin Island, Webb Tract, and Mandeville Island. The reliance on water management is evident through numerous Pumping Stations and Tide Gages scattered across the low-lying terrain.

Major navigational corridors such as the Stockton Deep Water Channel cut through the natural waterways, facilitating maritime traffic through Venice Cut and Three River Reach. Recreational use is concentrated at Franks Tract (State Recreation Area) and Mandeville Tip County Park. For genealogists and local historians, the map preserves specific access points like Jackson Slough Road and small clusters of habitation at the Trailer Park, illustrating the unique balance between industrial shipping, agricultural drainage, and delta living.