A procession of American and European automobiles--including such makes as Daimlers, Mercedes, Stanley Steamers and Pierces-- drive up and down the steep roads on Mt. Washington, New Hampshire. Some of them struggle with the steep grade. A hiker persists in sequential shots. It's unknown whether the film was an attempt to document a race or rally, or merely present picturesque actuality. It's also been surmised that audiences of the day might have bet on the film's numbered cars.