A need for speedy mail delivery from the East to the West led to one of the most famous mail services in history. The Pony Expresscovers the riders, dangers, and successes that led to the service's fame. Easy-to-read text, vivid images, and helpful back matter give readers a clear look at this subject. Features include a table of contents, maps, a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards. Core Library is an imprint of Abdo Publishing, a division of ABDO.