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1951 Map of Clear Lake Reservoir, 1964 Print
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1951 Map of Clear Lake Reservoir

USGS Topo · Published 1964

About this map

The Clear Lake Reservoir dominates this high-plateau landscape along the Oregon California State Line, where the waters are managed within the Clear Lake National Wildlife Refuge. The map reveals a land defined by early ranching and migration, specifically tracing the historic Emigrant Trail as it skirts the southern edge of the reservoir. Family-named outposts such as Holbrook Ranch, McNeil Ranch, and Chandler Ranch indicate the primary human footprint in this corner of the Modoc National Forest during the mid-20th century. The intricate shoreline of the reservoir, including Bird Island and Squatty, highlights the controlled inundation levels of the era, while the surrounding terrain is marked by distinctive volcanic features like Carr Butte and Double Head Mtn. Significant watercourses, including the Lost River and Rock Creek, tie the hydrology of the basin together, serving as critical points for surveying and water management near Walter Flat.

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Map Details

Date Portrayed1951
Date Published1964
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62500
Physical Dimensions16.6 x 20.7 inches

Editions of this 1951 Clear Lake Reservoir Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain