THE GREAT AMERICAN DESERT.

There is a great desert in the interior of North America. It is almost

as large as the famous Saara of Africa. It is fifteen hundred miles

long, and a thousand wide. Now, if it were of a regular shape--that is

to say, a parallelogram--you could at once compute its area, by

multiplying the length upon the breadth; and you would obtain one

million and a half for the result--one million and a half of square

miles. But its outlines are as yet very imperfectly known; and although

it is fully fifteen hundred miles long, and in some places a thousand in

breadth, its surface-extent is probably not over one million of square

miles, or twenty-five times the size of England. Fancy a desert

twenty-five times as big as all England! Do you not think that it has

received a most appropriate name when it is called the _Great American

Desert_?

Now, my young friend, what do you understand by a desert? I think I can

guess. When you read or hear of a desert, you think of a vast level

plain, covered with sand, and without trees, or grass, or _any_ kind of

vegetation. You think, also, of this sand being blown about in thick

yellow clouds, and no water to be met with in any direction. This is

your idea of a desert, is it not? Well, it is not altogether the

correct one. It is true that in almost every desert there are these

sandy plains, yet are there other parts of its surface of a far

different character, equally deserving the name of _desert_. Although

the interior of the great Saara has not been fully explored, enough is

known of it to prove that it contains large tracts of mountainous and

hilly country, with rocks and valleys, lakes, rivers, and springs.

There are, also, fertile spots, at wide distances from each other,

covered with trees, and shrubs, and beautiful vegetation. Some of these

spots are small, while others are of large extent, and inhabited by

independent tribes, and even whole kingdoms of people. A fertile tract

of this kind is called an oasis; and, by looking at your map, you will

perceive that there are many oases in the Saara of Africa.

Of a similar character is the Great American Desert; but its surface is

still more varied with what may be termed "geographical features."

There are plains--some of them more than a hundred miles wide--where you

can see nothing but white sand, often drifting about on the wind, and

here and there thrown into long ridges such as those made by a

snowstorm. There are other plains, equally large, where no sand

appears, but brown barren earth utterly destitute of vegetation. There

are others, again, on which grows a stunted shrub with leaves of a pale

silvery colour. In some places it grows so thickly, interlocking its

twisted and knotty branches, that a horseman can hardly ride through

among them. This shrub is the _artemisia_--a species of wild sage or

wormwood,--and the plains upon which it grows are called by the hunters,

who cross them, the _sage prairies_. Other plains are met with that

present a black aspect to the traveller. These are covered with lava,

that at some distant period of time has been vomited forth from volcanic

mountains, and now lies frozen up, and broken into small fragments like

the stones upon a new-made road. Still other plains present themselves

in the American Desert. Some are white, as if snow had fallen freshly

upon them, and yet it is not snow, but salt! Yes; pure white salt--

covering the ground six inches deep, and for fifty miles in every

direction! Others, again, have a similar appearance; but instead of

salt, you find the substance which covers them to be soda--a beautiful

efflorescence of soda!

There are mountains, too--indeed, one-half of this Desert is very

mountainous; and the great chain of the Rocky Mountains--of which you

have no doubt heard--runs sheer through it from north to south, and

divides it into two nearly equal parts. But there are other mountains

besides these; mountains of every height, and sometimes in their shape

and colour presenting very striking and singular appearance. Some of

them run for miles in horizontal ridges like the roofs of houses, and

seemingly so narrow at their tops that one might sit astride of them.

Others, again, of a conical form, stand out in the plain apart from the

rest, and look like teacups turned upside down in the middle of a table.

Then there are sharp peaks that shoot upward like needles, and others

shaped like the dome of some great cathedral--like the dome of Saint

Paul's. These mountains are of many colours. Some are dark, or

dark-green, or blue when seen from a distance. They are of this colour

when covered by forests of pine or cedar, both of which trees are found

in great plenty among the mountains of the Desert.

There are many mountains, where no trees are seen, nor any signs of

vegetation along their sides. Huge naked rocks of granite appear piled

upon each other, or jutting out over dark and frowning chasms. There

are peaks perfectly white, because they are covered with a thick mantle

of snow. These can always be seen from the greatest distance, as the

snow lying upon them all the year without melting proves them to be of

vast elevation above the level of the sea. There are other peaks almost

as white, and yet it is not with snow. They are of a milky hue, and

stunted cedar-trees may be seen clinging in seams and crevices along

their sides. These are mountains of pure limestone, or the white quartz

rock. There are mountains, again, upon which neither tree nor leaf is

to be; seen; but, in their stead, the most vivid colours of red and

green and yellow and white, appearing in stripes along their sides, as

though they had been freshly painted. These stripes mark the strata of

different coloured rocks, of which the mountains are composed. And

there are still other mountains in the Great American Desert, to startle

the traveller with their strange appearance. They are those that

glitter with the mica and selenite. These, when seen from a distance

flashing under the sun, look as though they were mountains of silver and

gold!

The rivers, too. Strange rivers are they. Some run over broad shallow

beds of bright sand. Large rivers--hundreds of yards in width, with

sparkling waters. Follow them down their course. What do you find?

Instead of growing larger, like the rivers of your own land, they become

less and less, until at length their waters sink into the sands, and you

see nothing but the dry channel for miles after miles! Go still farther

down, and again the water appears, and increases in volume, until--

thousands of miles from the sea--large ships can float upon their bosom.

Such are the Arkansas and the Platte.

There are other rivers that run between bleak, rocky banks--banks a

thousand feet high, whose bald, naked "bluffs" frown at each other

across the deep chasm, in the bottom of which roars the troubled water.

Often these banks extend for hundreds of miles, so steep at all points

that one cannot go down to the bed of their stream; and often--often--

the traveller has perished with thirst, while the roar of their water

was sounding in his ears! Such are the Colorado and the Snake.

Still others go sweeping through the broad plains, tearing up the clay

with their mighty floods, and year after year changing their channels,

until they are sometimes an hundred miles from their ancient beds. Here

they are found gurgling for many leagues under ground--under vast rafts

formed by the trees which they have borne downward in their current.

There you find them winding by a thousand loops like the sinuosities of

a great serpent, rolling sluggishly along, with waters red and turbid as

though they were rivers of blood! Such are the Brazos and the Red

River.

Strange rivers are they that struggle through the mountains, and

valleys, and plateau-lands of the Great American Desert.

Not less strange are its lakes. Some lie in the deep recesses of hills

that dip down so steeply you cannot reach their shores; while the

mountains around them are so bleak and naked, that not even a bird ever

wings its flight across their silent waters. Other lakes are seen in

broad, barren plains; and yet, a few years after, the traveller finds

them not--they have dried up and disappeared. Some are fresh, with

waters like crystal--others brackish and muddy--while many of them are

more salt than the ocean itself.

In this Desert there are springs--springs of soda and sulphur, and salt

waters; and others so hot that they boil up as in a great caldron, and

you could not dip your finger into them without scalding it.

There are vast caves piercing the sides of the mountains, and deep

chasms opening into the plains--some of them so deep, that you might

fancy mountains had been scooped out to form them. They are called

"barrancas." There are precipices rising straight up from the plains--

thousands of feet in height--and steep as a wall; and through the

mountains themselves you may see great clefts cut by the rivers, as

though they had been tunnelled and their tops had fallen in. They are

called "canons." All these singular formations mark the wild region of

the Great American Desert.

It has its denizens. There are oases in it; some of them large, and

settled by civilised men. One of these is the country of New Mexico,

containing many towns, and 100,000 inhabitants. These are of the

Spanish and mixed Indian races. Another oasis is the country around the

Great Salt and Utah Lakes. Here is also a settlement, established in

1846. Its people are Americans and Englishmen. They are the Mormons;

and, although they dwell hundreds of miles from any sea, they seem

likely to become a large and powerful nation of themselves.

Besides these two great oases, there are thousands of others, of all

sizes--from fifty miles in breadth, to the little spot of a _few_ acres,

formed by the fertilising waters of some gurgling spring. Many of these

are without inhabitants. In others, again, dwell tribes of Indians--

some of them numerous and powerful, possessing horses and cattle; while

others are found in small groups of three or four families each,

subsisting miserably upon roots, seeds, grass, reptiles, and insects.

In addition to the two great settlements we have mentioned, and the

Indians, there is another class of men scattered over this region.

These are white men--hunters and trappers. They subsist by trapping the

beaver, and hunting the buffalo and other animals. Their life is one

continued scene of peril, both from the wild animals which they

encounter in their lonely excursions, and the hostile Indians with whom

they come in contact. These men procure the furs of the beaver, the

otter, the musk-rat, the marten, the ermine, the lynx, the fox, and the

skins of many other animals. This is their business, and by this they

live. There are forts, or trading posts--established by adventurous

merchants--at long distances from each other; and at these forts the

trappers exchange their furs for food, clothing, and for the necessary

implements of their perilous calling.

There is another class of men who traverse the Great Desert. For many

years there has been a commerce carried on between the oasis of New

Mexico and the United States. This commerce employs a considerable

amount of capital, and a great number of men--principally Americans.

The goods transported in large wagons drawn by mules or oxen; and a

train of these wagons is called a "caravan." Other caravans--Spanish

ones--cross the western wing of the Desert, from Sonora to California,

and thence to New Mexico. Thus, you see, the American Desert has its

caravans as well as the Saara of Africa.

These caravans travel for hundreds of miles through countries in which

there are no inhabitants, except the scattered and roving bands of

Indians; and there are many parts on their routes so sterile, that not

even Indians can exist there.

The caravans, however, usually follow a track which is known, and where

grass and water may be found at certain seasons of the year. There are

several of these tracks, or, as they are called, "trails," that cross

from the frontier settlements of the United States to those of New

Mexico. Between one and another of these trails, however, stretch vast

regions of desert country--entirely unexplored and unknown--and many

fertile spots exist, that have never been trodden by the foot of man.

Such, then, my young friend, is a rough sketch of some of the more

prominent features of the Great American Desert.

Let me conduct you into it, and show you--from a nearer view--some of

its wild but interesting aspects. I shall not show you the wildest of

them, lest they might terrify you. Fear not--I shall not lead you into

danger. Follow me.

The desert home · 第 3 / 92 题