The Pony Express is a key component for connecting the east and west United States in the late 1800s. The founders of the Pony Express chose to set up their enterprise in St. Joseph because more people left for the west near the Missouri River. It was also the site for a terminus of both the telegraph and railroad points. Across the plains and mountains from Missouri to California, there were numerous rest spots and relay stations where some men exchanged the mail and continued forward. If it weren’t for the Pony Express men, the west would not have gotten their mail in a timely manner, and it wouldn’t have inspired the mail system that is in place today.