Highway opening (07/05/1948): LAS of arch over border, flags of Canada and USA, cut to boundary marker. MS of Lethbridge boys band arriving for ceremony; followed by two shots of the Canadian guard of honour arriving, a large group of small children, many bearing Union Jacks, arrive. Shot of US guard of honour in position. Governor General Viscount Alexander arrives by car and is cheered by school children. Sequence on greetings between Governor General, Lady Alexander and Colonel John S Chennault, representing the Governor of Montana. Inspection of the Canadian guard of honour, speech by Governor General Alexander and by JJ Flaherty, president of the Montana Chamber of Commerce. Shot of ribbon cutting ceremony by Alexander and Chennault. HASs of large crowd, arch and ceremony. MLS of Honourable AJ Hooke, Minister of Economic affairs of Alberta speaking, applause. Various shots of cars driving on newly opened international highway.