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2019 Map of McGrath A-3 SW, 2019 Print
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2019 Map of McGrath A-3 SW

USGS Topo · Published 2019

About this map

The high peaks of the Alaska Range dominate this 2019 survey, defining a landscape of extreme vertical relief and glacial topography. This interior wilderness spans the boundary between the Yukon-Koyukuk Census Area and the Bethel Census Area, reflecting the modern administrative divisions of Alaska's unorganized borough. The North Fork Big River serves as the primary drainage for the area, its course winding through deep valleys shaped by tectonic and glacial forces. Because there are no roads or settlements on this map, the topography itself reveals the difficulty of access to these high-altitude ranges, where contour lines tightly cluster around unnamed summits and ridges that feed into the larger Kuskokwim River watershed.

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Map Details

Date Portrayed2019
Date Published2019
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:25,000
Physical Dimensions24 x 29 inches

Editions of this 2019 McGrath A-3 SW 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