I was so excited to receive a letter from my friend Lita in Holbrook, AZ. that had been delivered from Holbrook to Scottsdale via the Hashknife Pony Express. Annie Mouse learned all about this once a year tradition while she was having her Route 66 Adventure. She even sent a few letters when she got home from her trip!
This is a fun thing to participate in, while teaching children a part of American history, and you can learn all about it here: