Mickey Mouse universe to Duckburg, the city in which Donald Duck lives (see Donald Duck universe). According to traditional continuity, both cities are located in the fictional U.S. state of Calisota – analogous to Northern California. The most consistent aspect of the Mickey Mouse universe is the characters. The most well-known include Mickey's girlfriend Minnie, pet dog Pluto, friends Horace Horsecollar, Clarabelle Cow, Donald Duck, Daisy Duck and Goofy, and nemesis Pete. Some Disney productions incorporate characters from Disney's animated feature films, such as "Bath Day" (1946; in which Figaro from "Pinocchio" appears as Minnie's cat), "Mickey's Christmas Carol" (1983), and – most
Duck family (Disney) Gertrude Coot (née Gadwall) is the wife of Clinton Coot and the mother of Casey and Elvira Coot ("Grandma Duck"). Like Lulubelle Loon, Gertrude has appeared only in Don Rosa's version of the Duck family tree. Casey Coot (1860-c. 1960) first appeared in "Last Sled to Dawson", first published in June, 1988. He is introduced as an unsuccessful gold prospector and friend of Scrooge McDuck during his years in Klondike. In need of money he sold to the significantly more successful Scrooge McDuck his share in Duckburg, Calisota, USA. His share included "Killmule Hill" which, renamed to "Killmotor Hill", comprises