Canyon
A canyon is a valley walled by cliffs. Most canyons originate by a process of long-time erosion from a plateau level, with a stream gradually carving out its valley. The cliffs form because harder rock strata that are resistant to erosion and weathering remain exposed on the valley walls. Canyons are much more common in arid areas than in wetter areas because weathering has a lesser effect in arid zones. Canyons walls are often formed of resistant sandstones or granite.The word canyon is Spanish in origin; in some parts of the United States, canyons are sometimes called gorges or notches.
In the southwestern United States, canyons are important archeologically because of the many cliff-dwellings built there, largely by the Anasazi people.
Sometimes large rivers run through canyons as the result of gradual geologic uplift. These are called entrenched rivers, because they are unable to easily alter course. The Colorado River and the Snake River in the northwestern United States are two examples of this.
The world's two largest canyons are the:
- Grand Canyon in Arizona, and the
- Copper Canyon in Chihuahua, Mexico
Other well-known canyon systems include:
The Blue Mountains west of Sydney in New South Wales, Australia contain many canyons carved into the sandstone rock.
For this time Daughter,
set.html">Set your entreatments at a higher rate,
Beleeue so much in him, that he is young,
Then may be giuen you. In few, Ophelia,
Not of the eye, which their Inuestments show:
Breathing like sanctified and pious bonds,
I would not, in plaine tearmes, from this time forth,
As to giue words or talke with the Lord Hamlet:
Hor. It is a nipping and an eager ayre
Ham. What hower now?
Wherein the Spirit held his wont to walke.
Ham. The King doth wake to night, and takes his rouse,
And as he dreines his draughts of Renish downe,
The triumph of his Pledge
Horat. Is it a custome?
And to my mind, though I am natiue heere,
More honour'd in the breach, then the obseruance.
Be thou.html">thou a Spirit of health, or Goblin damn'd,
Be thy euents wicked or charitable,
That I will speake to thee. Ile call thee Hamlet,
Let me not burst in Ignorance; but tell
Haue burst their cerments, why the Sepulcher
Hath op'd his ponderous and Marble iawes,
That thou dead Coarse againe in compleat steele,
Making Night hidious? And we fooles of Nature,
With thoughts beyond thee; reaches of our Soules,
As if it some impartment did desire
It wafts you to a more remoued ground:
I doe not set my life at a pins fee;
Being a thing immortall as it selfe:
Or to the dreadfull Sonnet of the Cliffe,
And there assumes some other horrible forme,
And draw you into madnesse thinke of.
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