The opera is scheduled to premiere in spring 2013, City Opera said Sunday. It will be City Opera's second Wuorinen premiere, following "Haroun and the Sea of Stories," which was based on a Salman Rushdie novel and opened in October 2004.
"Ever since encountering Annie Proulx's extraordinary story I have wanted to make an opera on it, and it gives me great joy that Gerard Mortier and New York City Opera have given me the opportunity to do so," Wuorinen said in a statement.
"Brokeback Mountain" is a cowboy romance about two ranch-hand buddies who start a homosexual affair when they meet on the fictional mountain in 1963.