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Accession number: 
Alternate Titles: 
Tour de force
French version
Production Years: 
1976 to 1977


Film Properties: 
Length (feet): 
978 (16mm)
Length (minutes): 
Holding Institutions: 

Library and Archives Canada: 16mm.


Online database (National Film Board of Canada).
"At 552 m the C.N. tower in Toronto is the world's largest free-standing structure. Its purpose is to provide a new link in nationwide communications. This film takes us step by step through the construction of the tower, from the soil tests and the enormous excavations to the dramatic "topping-off" with the communications mast by helicopter."

"La tour de communications du Canadien National, à Toronto, s'élève à 553 mètres au-dessus du sol, ce qui en fait la plus haute structure libre du monde. Le film nous invite à admirer l'audace des exploits technologiques nécessaires à un pareil 'tour de force'."