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1991 Map of Moulton Weir, 1995 Print
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1991 Map of Moulton Weir

USGS Topo · Published 1995

About this map

The Sacramento River defines the eastern boundary of this agricultural landscape in Colusa County, where complex water management systems like the Colusa Trough, Moulton Weir, and numerous canals dominate the terrain. This 1991 revision, based on earlier mid-century data, captures a region shaped by large land holdings like the Larkins Childrens Rancho and Jimeno grants. The map documents specialized land uses including the Delevan National Wildlife Refuge and the Colusa (Cachil Dehe) Rancheria, illustrating the persistence of both conservation and indigenous heritage. Evidence of the area's river-dependent history is visible at the Compton Landing (Site) and the winding Hamilton Bend, while recreational interests are marked by the Green Mallard Duck Club and Bell Outing Gun Club. Transport remains primarily tied to the grid of country roads like Maxwell Road, though an Old Railroad Grade hints at retired infrastructure.

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Map Details

Date Portrayed1991
Date Published1995
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions21.4 x 26.6 inches

Editions of this 1991 Moulton Weir Map

This is the sole edition of this map. No revisions or reprints were ever made.

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain