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1978 Map of Rio Vista

Name: 1978 Topographic Map of Rio Vista
Creator: U.S. Geological Survey
Published: 1993
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1993

About this map

The Sacramento River anchors this 1970s landscape, serving as a critical artery for the Deep Water Ship Channel and various agricultural tracts. The city of Rio Vista sits at the base of the Montezuma Hills, where the transition from rolling terrain to the low-lying delta is starkly defined by the Cache Slough and various bypass areas. This era shows a complex hydraulic landscape of pumping stations, siphons, and ferries necessary to manage the fertile but vulnerable lands of Ryer Island and Brannan Island.

The prominence of the Rio Vista Gas Field and Liberty Island Gas Field indicates the region's industrial importance beyond agriculture. Local researchers can identify civic landmarks like City Hall, the Rio Vista Airport, and the Riverview Sch, alongside maritime facilities such as the U S Coast Guard Res. The map also captures the intricate slough network, including Steamboat Slough and Elkhorn Slough, which defined the local movement of goods and people.