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2012 Map of Whittemore Ridge

Name: 2012 Topographic Map of Whittemore Ridge
Creator: U.S. Geological Survey
Published: 2012
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2012

About this map

Ingalls Swamp Ranch sits near the heart of this high-elevation landscape in Modoc County, characterized by a complex network of seasonal water sources and volcanic terrain. The 2012 survey illustrates a landscape defined by its ranching infrastructure, where numerous stock tanks like Williams Valley Stock Tank and DeCamp Stock Tank support livestock across the open range. The northern reaches are dominated by the elevation of Timbered Mountain, while the southern portion of the map is anchored by the significant waters of the Big Sage Reservoir.

Surface water is critical in this arid environment, evidenced by the many named springs such as Whittemore Spring, Logan Spring, and Cow Head Spring. A distinct drainage pattern follows Logan Slough as it meanders through the eastern section. Notable topographical features including Whittemore Ridge, Graves Valley, and the dramatic Porcupine Rim provide a clear view of the area's physical relief. Transport is largely facilitated by rugged corridors like Crowder Flat Rd, connecting isolated ranch sites and water points.