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1993 Map of Big Sage Reservoir, 1996 Print
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1993 Map of Big Sage Reservoir

USGS Topo · Published 1996

About this map

Modoc National Forest dominates this high-altitude landscape, centered on the expansive waters of Big Sage Reservoir. The map reveals a complex water management system within the arid terrain, featuring Big Sage Dam and several smaller catchments like Kelley Reservoir and Essex Reservoir. To the south, the Devils Garden Conservation Camp sits near the headwaters of West Rock Creek, while the western edge is defined by the sharp drop-off of Porcupine Rim overlooking Porcupine Valley. The presence of several stock ponds and named springs like Mill Springs underscores the area's importance for livestock and resource management. The terrain is further characterized by dramatic features such as Whittemore Ridge and the deep cut of Salisbury Gulch, illustrating the transition from volcanic plateaus to riparian basins.

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Map Details

Date Portrayed1993
Date Published1996
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24000
Physical Dimensions21.7 x 27.2 inches

Editions of this 1993 Big Sage Reservoir Map

Historical Maps of Modoc County Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain