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1993 Map of Pinnacle Lake, 1996 Print
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1993 Map of Pinnacle Lake

USGS Topo · Published 1996

About this map

Clear Lake Reservoir dominates the northwestern portion of this high-plateau landscape, where the Clear Lake National Wildlife Refuge meets the protected reaches of the Modoc National Forest. This 1993 study details an environment shaped by water management and conservation, notably recording a spillway elevation of 4480 feet. The map illustrates a network of seasonal hydrology and drainage, including Moultz Creek and Boles Creek, alongside smaller high-elevation water bodies like Pinnacle Lake and Red Lake. The presence of several Rock Wall features suggests a history of livestock management or early land demarcation within these basins. Forest roads such as 46n29 and 46n73 provide the primary access through this remote intersection of sagebrush flats and volcanic terrain.

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Map Details

Date Portrayed1993
Date Published1996
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions21.9 x 26.7 inches

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain