From the record
“The Parting of the Ways is a historic site in Sweetwater County, Wyoming, United States, where the Oregon and California Trails fork from the original route to Fort Bridger to an alternative route, the Sublette-Greenwood Cutoff, across the Little Colorado Desert. Many wagon trains parted company, some preferring the shorter cutoff route, which involved fifty waterless miles, to the longer but better-watered main route.”
Wikipedia article Parting of the Ways (Wyoming), CC BY-SA 4.0.
One of 28 National Register listings published here for Sweetwater County · listed in 1976 · category: Site.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service