One of those difficult to pin down questions google this one.
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It wasn't until I returned home that I found out what the Kali-Gandaki Gorge is. The Kali-Gandaki river cuts between the peaks of Dhauligiri to the west and Annapurna to the east - resp ectively the sixth and tenth highest mountains in the world. Both peaks rise more than four miles above the river below, making a canyon so enormous that the eye can hardly see it for what it is. It is four times as deep as the Grand Canyon, and far wider; between the two peaks you could roughly fit twenty Grand Canyons.
The Kali-Gandaki Gorge is the deepest canyon in the world.
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