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Beskrivelse
All canyons are deep, steep valleys, but there is more to these landforms than meets the eye Rivers form some canyons, while the movement of Earth's crust forms others. To get to the bottom of the Grand Canyon in Arizona, you'd have to travel more than a mile Give beginning readers all the need-to-know information about canyons, including their characteristics, how they form, and where they can be found around the world.