Valley

In geology, a valley or dale is a depression with predominant extent in one direction. A very deep river valley may be called a canyon or gorge.

The terms U-shaped and V-shaped are descriptive terms of geography to characterize the form of valleys. Most valleys belong to one of these two main types or a mixture of them, (at least) with respect of the cross section of the slopes or hillsides.

Read more about Valley:  Valley Terminology, River Valleys, Vale, Glacial Valleys, Transition Forms and Valley Shoulders, Hanging Valleys, Valley Floors, Hollows, Famous Valleys, Rift Valleys

Famous quotes containing the word valley:

    ““Over the mountains
    Of the moon,
    Down the valley of the shadow,
    Ride, boldly ride,”
    The shade replied,—
    “If you seek for Eldorado!””
    —Edgar Allan Poe (1809–1849)

    “Ah! I have penetrated to those meadows on the morning of many a first spring day, jumping from hummock to hummock, from willow root to willow root, when the wild river valley and the woods were bathed in so pure and bright a light as would have waked the dead, if they had been slumbering in their graves, as some suppose. There needs no stronger proof of immortality. All things must live in such a light. O Death, where was thy sting? O Grave, where was thy victory, then?”
    —Henry David Thoreau (1817–1862)

    “How old the world is! I walk between two eternities.... What is my fleeting existence in comparison with that decaying rock, that valley digging its channel ever deeper, that forest that is tottering and those great masses above my head about to fall? I see the marble of tombs crumbling into dust; and yet I don’t want to die!”
    —Denis Diderot (1713–1784)