The Union Pacific and Central Pacific built the transcontinental railroad and when it was finished, a golden spike was nailed when it was finished to celebrate the event.
The journey often took six months, and travelers faced food shortages, disease, and threats from Native Americans.
Refrigerated railroad cars could take the processed meat to the East.
Actually the railroads enabled ranchers to drive their cattle shorter distances to the trains that came to their most local cow-town.
The railroads allowed cattle to be transported long distances, quickly and efficiently to distant markets. This meant that herding of cattle on foot over long distances, using much man power, would eventually be consigned to the western cowboy movies.
A spirit of independence in the west.-APEX