Over time, two major heavily used cutoffs were established in Wyoming. The Sublette-Greenwood Cutoff was established in 1844 and cut about off the main route. It leaves the main trail about west of South Pass and heads almost due west crossing Big Sandy Creek and then about of waterless, very dusty desert before reaching the Green River near the present town of La Barge. Ferries here transferred them across the Green River. From there the Sublette-Greenwood Cutoff trail had to cross a mountain range to connect with the main trail near Cokeville in the Bear River Valley.