The Quiz: What was the term for the mailbag used on the Pony Express?
Saddlebag
Satchel
Backpack
Mochila
The special type of mailbag used on the Pony Express was called a “mochila,” which is Spanish for “knapsack.” These mochilas were made of leather and had four pockets, which were kept locked for most of the journey. Three of the pockets contained mail and could only be opened at military posts, and the fourth contained a timecard. That pocket could be opened only by station masters at specific relay stops.
The correct answer to this quiz is Mochila.