Collection search - The Centennial Barge aboard the vessel 'Radium 100' was launched on Great Slave Lake at Hay River/Xatl'odehchee NT June 17 1967, by Georgina Blondin, who held the title 'Northwest Territories Princess.' The floating exhibit visited communities along the 1,650 km/1,025-mile length of the Mackenzie River that summer

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