The Mount Rushmore Calamity (Flat Stanley's Worldwide Adventures, Bk. 1)

Ever since Stanley was flattened by a bulletin board, every trip is an adventure! The whole Lambchop family is off to see Mount Rushmore. But when Flat Stanley and his brother, Arthur, team up with a scrappy cowgirl named Calamity Jasper, their vacation turns into the Wild West experience of a lifetime. Pretty soon, they find themselves in a real tight spot - even for a flat boy like Stanley!