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2018 Map of Moulton Weir

Name: 2018 Topographic Map of Moulton Weir
Creator: U.S. Geological Survey
Published: 2018
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2018

About this map

Sacramento River meanders through the heart of this landscape, defining the agricultural character of Colusa County. The eponymous Moulton Weir serves as a critical water management feature along the river's eastern banks, while the settlement of Stegeman sits just to the north. This region is heavily defined by its complex irrigation and drainage infrastructure, including the massive Colusa Trough, the Main Canal, and the Provident Central Canal.

Conservation areas and aviation landmarks punctuate the rural terrain, with the Delevan National Wildlife Refuge Rd marking the boundary of protected wetlands to the west. Local private aviation is represented by Gunnersfield Ranch Airport and Richter Airport. The map also captures several distinctive natural curves of the river system, most notably the prominent Hamilton Bend near the southern boundary, surrounded by a network of rural routes like River Rd and Reese Rd.