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1918 Map of Stevinson

Name: 1918 Topographic Map of Stevinson
Creator: U.S. Geological Survey
Published: 1918
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1918

About this map

The confluence of California’s Central Valley waterways takes center stage in this 1915 survey. The San Joaquin River and Merced River dominate the landscape, their winding courses defining the local topography before modern large-scale channelization. The settlement of Stevinson appears as a small but established hub, surrounded by an emerging network of water management features designed for agriculture.

Evidence of early 20th-century irrigation is clear through features like the East Side Irrigation Canal 20 and Adams Ditch. The map also captures a complex system of natural drainages including Lake Honda, Bear Slough, and Salt Slough. These details reveal how the land was being converted from its original marshy state into productive farmland during the administration of Governor Hiram W. Johnson.