By Dick Blust
Sweetwater County Historical Museum 

Tollgate Rock and the evolution of a highway


August 31, 2023

Sweetwater County Historical Museum

Just west of Green River, standing between Wyoming Highway 374 and Interstate 80, is one of the most distinctive landmarks in Sweetwater County - Tollgate Rock. 374 passes along its western base and has seen several designations since the early 1870s. The Sweetwater County Historical Museum recently received a research inquiry about the origin of the promontory's name; specifically, whether or not it was ever the site of an actual toll gate. The answer is "yes."


The Green River-South Pass Stage Road


The Union Pacific Railroad reached Green River in 1868. By that year the gold rush in...

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