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2021 Map of Copic

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

USGS Topo · Published 2021

About this map

Modoc National Forest land dominates this high-desert region of Modoc County, where the transition from irrigated valley flats to volcanic uplands is clearly visible. The small settlement of Cornell sits along the primary highway corridor, serving as a focal point for a landscape defined by its distinct volcanic topography. To the north, the former rail and road junction at Copic marks the edge of a drainage system that includes Snake Island and Lands Island, names that hint at the seasonal water patterns and historical land use of the Tule Lake basin area.

Surface water is managed through features like Mason Reservoir in the northeast, while the southern reaches of the map climb into the rugged peaks of Casuse Mtn and Harvey Jones Butte. The road network, including numerous county routes like Co RD 121 and Co RD 139, provides access to livestock grazing areas and remote geographic landmarks such as Saddle Blanket Flat and Dead Horse Canyon. This map provides a detailed view of the rural infrastructure and named topographical features that define the interior of far northern California.