The fort became the eastern anchor of the Great Platte River Road and thus an important military and civilian way station for 20 years. Wagon trains moving west, were able to resupply after completing about a sixth (16%) of the journey. The fort offered a safe resting area for the eastern immigrants in this new and hostile land. Livestock could be traded for fresh stock and letters sent back to the States. The fort continued to expand over the years, until there were over 30 buildings before its closure in 1871. It took on additional roles as a Pony Express station, an Overland Stage station and a telegraph station.