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2021 Map of Islay

Name: 2021 Topographic Map of Islay
Creator: U.S. Geological Survey
Published: 2021
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2021

About this map

Islay and the Dereemer Ranch anchor this landscape in Laramie County, where the high plains transition into more complex drainage patterns. The area is defined by the headwaters of the Lodgepole Creek system, including N Lodgepole Cr, Middle Lodgepole Cr, and S Lodgepole Cr. These streams carve through the terrain, creating a network of gulches and draws such as Tromley Gulch and Parker Gulch that have historically guided movement through this part of Wyoming.

The presence of Cheyenne Pass and Mesa Mtn suggests a topography that demanded specific routes for early travel and ranching operations. Near the eastern edge, Chadwick Reservoir Number 3 indicates the critical importance of water management in this arid environment. The map details a rural infrastructure of named ranch roads like Horse Creek RD and Van Tassell RD, which continue to serve the isolated settlements and livestock operations of the region.