Most beautiful valleys on the planet

Valley by Wikipedia is swimming or low normal on the surface of the earth, stretching valleys between the plains and hills and mountains, and flowing rivers and floods flowing in the valleys gradually inland to the ocean, and features territories valleys fertile, making it suitable for agriculture, and similar valleys in shape, and called downthe valley floor of the valley.
Descend most of the valleys in the downstream, and narrow mountain valleys floor but extends the valley floor in the low-lying plains for several kilometers in width, and called valley floor parallel to the riverbank spate easy.
After this tract tariff valleys, going to see photographs of the most beautiful valleys in the world, we follow! Arizona, USA