Let me know if you are coming out to Idaho We don't have very many shows here, if I remember right there is 3-4 (conformation)a year spread throughout the state. Boise shows are nice and held in October. Couer D'alene (May) and Lewiston (April) are probably closest to you if you are in Canada.
All of the dog show superintendents have their own websites. Infodog lists all the shows by date, no matter who the show super is. You can also check the other supers. Some of the more popular ones are: