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2021 Map of Elk Basin SW, 2021 Print
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2021 Map of Elk Basin SW

USGS Topo · Published 2021

About this map

Ralston Flats anchors the southern portion of this landscape, where the human footprint is most visible through an intricate network of irrigation engineering. This dry basin environment is defined by the management of water, evidenced by the Middle Sand Coulee Reservoir and Upper Sand Coulee Reservoir. The terrain is shaped by significant geological features like the elevated Polecat Bench and the carved depths of Big Sand Coulee. The irrigation infrastructure, including the Alkali Cr Ditch and the Ralston Lateral, suggests a transition from the wilder coulees to managed agricultural or ranching lands. These waterways, alongside smaller channels like Lateral H-1.43, provide a detailed look at how this part of Park County has been modified to support settlement in a high-plains climate.

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Map Details

Date Portrayed2021
Date Published2021
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions24 x 29 inches

Editions of this 2021 Elk Basin SW Map

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

Historical Maps of Park County Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain