Construction Plant Engineers tended to assume that big plant needed to be on steel tracks. As a manufacturer of Rubber tyres Goodyear had different ideas. . Rather than add a commentary they made a film of rubber tired plant hard at work on a difficult site the Arracona Copper Mine 8,000 feet above sea level where big tackle had plenty of space to take advantage of high operating speeds . When it was show to an audience of plant engineers they were fascinated. At the time this film was made a big wheeled bulldozer was a rarity. Date unknown but must be around 40 to 50 years ago.
An intriguing and diverting film 10 minutes in very pink colour film