Tie hackers operated in the Wyoming Range of the Bridger-Teton National Forest fro 1900 to the 1930s. The cut down trees and made them into railroad ties for tracks for the Union Pacific Railroad. Logging was done in the winter and the ties were piled up along streams. The tie hack loggers used the force of spring thaw water surges along Cottonwood Creek and its tributaries to take the ties down to the Green River, where they were floated down to Green River City.