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2021 Map of Cortina Creek

Name: 2021 Topographic Map of Cortina Creek
Creator: U.S. Geological Survey
Published: 2021
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2021

About this map

Williams stands at the northeastern edge of this California landscape, where the flat agricultural terrain of the Sacramento Central Valley meets the rising elevations of the foothills. This area is defined by an intricate network of irrigation infrastructure and seasonal watercourses that support the regional economy. The massive Tehama Colusa Canal and Glenn-Colusa Canal cut through the landscape, providing essential water management for the valley floors.

Moving west, the terrain shifts into more complex topography marked by Spring Valley and the drainages of Cortina Creek and Chamisal Cr. These drainage patterns, including Sand Cr and Spring Cr, have shaped the local road network, where routes like Cortina Vineyard Rd and Cortina School Rd follow the natural contours of the land. This map illustrates the transition from organized grid-based farming near the canals to the less structured ranching and vineyard country deeper in the hills.