The Treasure of the Sierra Madre was one of the first Hollywood films to be filmed almost entirely on location outside the United States (in the state of Durango and street scenes in Tampico, Mexico), although the night scenes were filmed back in the studio. The film is quite faithful to the novel. In 1990, this film was selected for preservation in the United States National Film Registry by the Library of Congress as being "culturally, historically, or aesthetically significant"