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2018 Map of Day

Name: 2018 Topographic Map of Day
Creator: U.S. Geological Survey
Published: 2018
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2018

About this map

Day serves as the primary point of settlement in this northern California landscape, situated where the borders of Modoc, Shasta, and Lassen counties converge. The terrain is defined by the massive volcanic uplifts of the Big Valley Mountains and Widow Valley Mountains, creating a rugged profile that includes peaks like Widow Mtn and Jimmerson Mtn. These highlands are divided between the Modoc National Forest and Shasta National Forest, preserving a high-desert wilderness characterized by seasonal water sources and canyons.

Water management is a central feature of the local geography, visible through the series of reservoirs such as Indian Reservoir, Baldy Reservoir, and Clark Reservoir. The name Old Brown Ranch suggests the area's agricultural history, while the network of primitive routes like Widow Valley Rd and Rock Canyon Rd provides access to springs such as Sugar Pine Spring and Hamlin Springs that have historically supported ranching and forestry in this high-elevation environment.