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1993 Map of Letterbox Hill, 1996 Print
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1993 Map of Letterbox Hill

USGS Topo · Published 1996

About this map

Modoc National Forest encompasses the majority of this high-elevation landscape, where a series of volcanic-named features and upland plateaus dominate the terrain. Significant water management for the region is evident through a network of catchments including Myers Reservoir, Whit Flat Reservoir, and McClelland Reservoir, which likely supported local ranching or forest service operations. The southern portion of the sheet is designated as a State Game Refuge, covering the broad reaches of Hayden Hill and Silva Flat. Land navigation is marked by specific crossings and landmarks such as Stonebreaker Crossing and Letterbox Hill. The presence of numerous seasonal springs like Deer Spr and Myer Spring suggests a landscape defined by intermittent water sources and the shifting needs of mountain land use in the late twentieth century.

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Map Details

Date Portrayed1993
Date Published1996
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions21.9 x 26.5 inches

Editions of this 1993 Letterbox Hill Map

This is the sole edition of this map. No revisions or reprints were ever made.

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain