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2019 Map of Ruby D-4 SE, 2019 Print
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2019 Map of Ruby D-4 SE

USGS Topo · Published 2019

About this map

Grass Lake lies at the heart of this Yukon-Koyukuk landscape, where complex wetland patterns and small ponds dominate the central terrain. To the north, the winding course of Twin Slough indicates the presence of a dynamic river system, while Deer Cr cuts through the western sections. The map reveals the intricate drainage and muskeg typical of this Alaskan region, showcasing a topography defined more by water and marsh than by human development. Surveyed in the early twenty-first century, the sheet documents the natural state of these watersheds across several township boundaries, including t7s r21e and t8s r21e, providing a baseline for environmental study and navigational reference in an area devoid of modern road networks.

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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 Ruby D-4 SE 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