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2018 Map of Big Swamp

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

USGS Topo · Published 2018

About this map

Big Swamp dominates the center of this terrain where the Modoc and Lassen county lines meet in the Big Valley region. The landscape is a complex network of wetlands and geothermal activity, evidenced by the presence of Bassett Hot Springs and Kellog Hot Springs. These natural features are surrounded by a structured grid of agricultural infrastructure, including the Big Valley Canal and Hot Springs Slough.

Settlement patterns follow the high ground and established ranching corridors, such as Tom Gifford Ranch Rd, while the Mountain View Cem and Southard Field airstrip serve the local community. To the north, the terrain rises toward the Modoc National Forest, with prominent landmarks like Roberts Butte and Pilot Butte providing orientation. The inclusion of the Ash Creek Wildlife Area reflects the ongoing conservation of this unique high-desert marshland.