Pony Express
pony express, in U.S. history, relay mail service. At its inception in Apr., 1860, the pony express operated between St. Joseph, Mo., the western end of a telegraph line, and Sacramento, Calif. Riders carried the mail a distance of nearly 2,000 mi (3,200 km) in about eight days, often traveling through hostile Native American territory. Stations where the riders changed horses were roughly 10 to 15 mi (16-24.1 km) apart. After a rider had covered a certain distance, the mail was turned over to another rider; this continued until the destination was reached.




