3121-23 South Grand Boulevard

Historical marker location:

3121 South Grand Boulevard, Saint Louis, Missouri

( Marker is on South Grand Boulevard north of Hartford Street, on the right when traveling south.)

Built 1907

The Pony Express, a mail delivery service that operated from 1860 to 1861, had a route that went through Missouri. The service used a network of riders and relay stations to transport mail from St. Joseph, Missouri, to Sacramento, California, in just 10 days.