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2015 Map of Petaluma River

Name: 2015 Topographic Map of Petaluma River
Creator: U.S. Geological Survey
Published: 2015
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2015

About this map

The Petaluma River winds through a complex network of wetlands and tidal channels along the border of Sonoma and Marin Counties. This hydrological landscape is defined by its numerous sloughs, including Schultz Slough, Mud Slough, and Donahue Slough, which frame low-lying landforms like Burdell Island and Hog Island. To the west, the elevation rises sharply toward the heights of Burdell Mtn and the recesses of Bowman Canyon.

Transportation and aviation are central to this area, evidenced by the Northwestern Pacific railroad corridor and the presence of two airfields: Mazza Airport and Gnoss Field. Settlements such as Lakeville, Burdell, and San Antonio are situated along these primary transit routes, reflecting the region's development as a corridor between the hills and the river. The map also captures several distinct river bends, most notably Cloudy Bend, which illustrates the natural meandering path of the water before it meets the broader reaches of the bay.