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1958 Map of McGrath A-1, 1963 Print
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1958 Map of McGrath A-1

USGS Topo · Published 1963

About this map

The Old Iditarod Trail provides a critical historical thread through this high-altitude landscape, tracing a path through the northeastern corner near Rainy Pass and Rainy Pass Lake. This 1958 survey captures a remote wilderness defined by the towering Terra Cotta Mountains and Teocalli Mountains, which channel the braided waters of the South Fork Kuskokwim River. The topography reveals the natural corridors of movement used by early travelers, such as Goodman Pass and Houston Pass, which bridge the divide between major drainage systems. Water features are abundant despite the high elevation, including Widgeon Lake, Hagen Lake, and the headwaters of the Happy River. This document preserves the exact alignment of the historic trail before modern changes altered the accessibility of the Alaskan interior.

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Map Details

Date Portrayed1958
Date Published1963
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:63,360
Physical Dimensions19 x 20.8 inches

Editions of this 1958 McGrath A-1 Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain