Is 0.0000000990 kilometers as long as The Grand Canyon?
It's about 0.0000000002 times as long as The Grand Canyon
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The length of The Grand Canyon is about 446 kilometers.
(a.k.a. Gran Cañón) (Arizona) (Colorado River miles measure)
The Grand Canyon has a total length of 446 km along the course of the Colorado River at its bottom. Having opened in early 2007, the Grand Canyon Skywalk allows tourists to stand on a horseshoe-shaped glass walkway 1.10 kilometers above the floor of Granite Gorge.
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