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2015 Map of Islay

Name: 2015 Topographic Map of Islay
Creator: U.S. Geological Survey
Published: 2015
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2015

About this map

Islay and the high plains of Laramie County are defined by a complex network of water management and natural drainage systems. This portion of the Wyoming landscape shows the critical role of irrigation and storage in the semi-arid west, exemplified by the Chadwick Reservoir Number 3 and Chadwick Ditch Number 1. These man-made features work alongside the natural forks of Lodgepole Cr, including the North, Middle, and South branches, which have historically carved the terrain.

The topography is marked by significant elevation shifts, from the prominent Mesa Mtn to the historic Cheyenne Pass. The drainage patterns are clearly etched into the land through features like Tromley Gulch and Bean Draw. Roadways such as Horse Creek Rd follow the natural contours of the land, connecting these isolated ranching and water-management sites within the t16n r70w and surrounding survey townships.