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1989 Map of Salt Canyon

Name: 1989 Topographic Map of Salt Canyon
Creator: U.S. Geological Survey
Published: 1989
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1989

About this map

Cortina Rancheria Indian Reservation lies at the southern heart of this landscape, an area defined by the sharp rise of Cortina Ridge. The terrain transitions between the open flats of Spring Valley to the east and Antelope Valley to the west, separated by a complex network of canyons and named high points. Local landmarks like Whiskey Hill and Helmer Hill suggest a history of grazing and ranching, supported by a series of essential water sources including Britton Spring and Cottonwood Spring.

Tracing the northern boundary reveals the Three Sisters peaks, while the southern reaches are marked by the Schoolhouse Divide and the small settlement at Plum Orchard. The map documents a rural environment largely accessed via 4WD tracks and trails, illustrating how the geography dictated the placement of isolated outposts like La Coma Tallac. This 1989 edition preserves the names of flats and canyons that have long served as the primary identifiers for this portion of Colusa County.