I seem to recall it as background to some old Warner Bros. cartoons.
Not Warner Bros. Cartoons. In 1958, Walt Disney released a live-action short subject based on the suite and using its music. The thirty-minute Technicolor and CinemaScope film, entitled Grand Canyon, used no actors or dialogue, simply shots of the Grand Canyon itself and several animals around the area, all shown with Grofé’s music accompanying the visuals. The short won an Academy Award for Best Live Action Short Subject, and was shown as a featurette accompanying Disney’s 1959 Sleeping Beauty. Wikipedia