The spooky season is upon us, and to celebrate here at the B&O, the Mile One Express becomes the Pumpkin Patch Express! Take a Halloween-decorated train ride out to the B&O's pumpkin patch, located at the site of the First Mile Stable. After choosing their pumpkin, touring the stable, and meeting the horses, kids will take the train back to the B&O, where they can decorate their pumpkins, play carnival games, win prizes, enjoy a fall snack, receive tokens to…