The Mark Twain Riverboat is one of a series of 67 pins released in the summer of 1998, prior to the official start of Disney pin trading, featuring the attractions at Disneyland. This pin features a white and black paddlewheel boat with flag pole and two smokestacks, moving away and to the right in a blue water. The words "Mark Twain" are written in script, with "RIVERBOAT" written below and "Disneyland®" logo. The pin measures 1 1/2" (3.8 cm) wide and 1 1/2" (3.8 cm) tall. The backstamp reads "DISNEY."