Principal photography began in the summer of 2004. While the novel is set in Wyoming, Brokeback Mountain was filmed almost entirely in the Canadian Rockies in southern Alberta. Lee was given a tour of the locations in the story in Wyoming by Proulx but chose to shoot in Alberta, citing financial reasons. The fictional Brokeback Mountain was named to suggest a physical feature, after a term used for a swaybacked horse or mule. The mountain featured in the film is a composite of Mount Lougheed south of the town of Canmore, Fortress and Moose Mountain in Kananaskis Country. The campsites were filmed at Goat Creek, Upper Kananaskis Lake, Elbow Falls and Canyon Creek, also in Alberta. Other scenes were filmed in Cowley, Fort Macleod, and Calgary. Brokeback Mountain's production budget was approximately US$14 million.