Original Disneyland park poster for Frontierland, featuring the Mark Twain Riverboat (Disneyland, 1955). Hand-pulled silk-screen designed by Bjorn Aronson features rich colors of turquoise, brown, green and yellow advertising ''Colorful, Exciting Adventures Aboard the 'Mark Twain'''. Measures 36'' x 54''. Some edgewear and closed tears archivally repaired on verso. Lower portion has more wear and creasing with some paper loss along left edge. Poster still displays very well with vibrant coloring, overall in good to very good condition.