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2017 Map of Split Rock

Name: 2017 Topographic Map of Split Rock
Creator: U.S. Geological Survey
Published: 2017
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2017

About this map

The Sweetwater River winds through this high-altitude corridor of central Wyoming, where the historic Oregon Trl and California Emigrant Rd converge. This landscape is defined by the sharp granite outcroppings of the Granite Mountains, most notably the iconic Split Rock landmark and the distinctive Great Stone Face. These geological features served as critical navigational aids for pioneers and emigrants moving westward through the gap.

Water management in this arid environment is evidenced by the McIntosh-Beaton Ditch and the presence of Speyers Reservoir. The terrain is punctuated by significant elevations such as Castle Rock, Cranner Rock, and Henry Peak, alongside named depressions like Beaton Pocket. The map also captures the tri-county corner where Fremont, Natrona, and Carbon counties meet, illustrating the intersection of modern political boundaries with ancestral transit routes.