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1958 Map of McGrath A-3, 1964 Print
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1958 Map of McGrath A-3

USGS Topo · Published 1964

About this map

The Trimokish Hills dominate the central landscape of this interior Alaskan territory as it was documented in the late 1950s. The region is defined by its complex glacial-fed drainage systems, most notably the winding course of the Middle Fork Kuskokwim River and its tributary, the Windy Fork Middle Fork Kuskokwim River. In the southwestern portion of the quadrangle, the North Fork Big River carves through the terrain, illustrating the dramatic braided river patterns characteristic of the Alaska Range foothills. Published during the early years of statehood, this survey represents a period when much of the Bureau of Land Management territory remained unsurveyed and locations were predetermined via photogrammetric methods from aerial photographs. The absence of roads or trails on this sheet underscores the isolation of the Yukon-Koyukuk region before modern infrastructure reached these interior forks.

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Map Details

Date Portrayed1958
Date Published1964
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:63,360
Physical Dimensions18 x 21.8 inches

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain