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2021 Map of Solyo

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

USGS Topo · Published 2021

About this map

The Diablo Range meets the Central Valley in this modern-day topographic record, illustrating the critical water infrastructure that sustains this portion of California. Three major water arteries—the Hetch Hetchy Aqueduct, the Delta-Mendota Canal, and the Governor Edmund G Brown California Aqueduct—sweep across the landscape, demonstrating the massive scale of 20th-century engineering required to move water from the Sierras and Delta southward.

The map reveals a striking contrast between the grid-work irrigation of the valley floor, serviced by systems like Lateral Six N and Lateral Five N, and the steep, complex drainage systems of the mountains. To the southwest, the terrain rises sharply toward Mt Oso, carved by seasonal drainages such as Ingram Canyon, Rocky Ford Canyon, and Cedar Spring Gulch. This boundary zone near Solyo remains a crossroads of agricultural utility and wild mountain terrain at the San Joaquin and Stanislaus county line.