'Grand canyon skywalk' diaporamas de présentation

IST380

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The Grand Canyon Skywalk The glass bridge which is suspended 4,000 feet above the Colorado River on the very edge of th

The Grand Canyon Skywalk The glass bridge which is suspended 4,000 feet above the Colorado River on the very edge of the Grand Canyon. The construction began in March of 2004. On May 2005, the final test was conducted and the structure passed engineering requirements

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GRAND CANYON

GRAND CANYON. Grand Canyon located in the southwest of the U S in state of Arizona for a total area of ??4,933 km square. Grand Canyon is 460 km long, 30 km wide and more than 1.6 km deep

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Grand Canyon

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