1967 Map of South Fork Mountain, 1986 Print
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1967 Map of South Fork Mountain

USGS Topo · Published 1986

About this map

Emigrant Trail (Sublette Cutoff) crosses the southeastern corner of this landscape, marking a significant historical corridor for westward expansion through Wyoming. The terrain is defined by a series of parallel north-south formations, including Commissary Ridge, South Fork Mountain, and Oyster Ridge. These ridges are separated by deep valleys such as Mammoth Hollow, creating a complex drainage network that feeds into Bartlett Creek and Fontenelle Creek. A Pack Trail winds through the higher elevations near Granny Peak, suggesting the area's continued use for livestock grazing or remote exploration during the late 1960s. The presence of Mud Lakes and numerous small springs illustrates the seasonal water patterns that sustained travelers and cattlemen in the Pomeroy Basin.


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Map Details

Date Portrayed1967
Date Published1986
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24000
Physical Dimensions21.3 x 26.9 inches

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Source Details

CopyrightPublic Domain