"Maverick" has some lovely scenes shot in Yosemite National Park; one in Leidig Meadows. And one scene from "The Caine Mutiny" was shot in the Ahwahnee Hotel, which was used as a hospital during World War II.

And you forgot "Grand Canyon" in which Kevin Kline, Mary McDonnell and Danny Glover have a 'come together' moment at the movie's namesake.