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1985 Map of Roy NW
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1985 Map of Roy NW

USGS Topo · Published 1985

About this map

Snell Ridge and the winding course of the Sacagawea River characterize this landscape in central Montana. Surveyed in the late 1970s and edited by the U.S. Geological Survey in 1985, this topographic study documents the drainage patterns of Dry Armells Creek as it cuts through the local coulees. The terrain is defined by its intermittent watercourses, including Antelope Coulee and Blood Cr, which reveal the erosional history of the Fergus County region. The map provides a look at the area's geography before significant modern development, focusing on the natural contours and the relationship between high ridges and the river valley below.

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Map Details

Date Portrayed1985
Date Published1985
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22.1 x 27.1 inches

Editions of this 1985 Roy NW Map

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

Historical Maps of Fergus County Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain