Brokeback is where it's at. For reals.
"Brokeback Mountain" is where Ennis and Jack fall in love, and as such, it becomes much more than a setting for the first part of the narrative. It's more a symbol for the story itself—an ill-fated love that could never be what these characters wanted it to be. It's so symbolic, in fact, we did a whole analysis of it in our "Symbols, Imagery and Allegory" section, so click on over there to read more.