About twenty miles away to the south is the great lagoon called Aullagas or Poopo,—the names are taken from villages on its shores,—which is fed by the river Desaguadero. This singular lake, which has the interest of a vanishing quantity, is fifty-three miles long by twenty-four broad, is nowhere more than nine feet deep and mostly less than five, is salt, turbid, with a bottom of dark mud, and full of fish too small to be worth catching. Like those of Titicaca they belong to species found nowhere else. Having so small a volume in proportion to the surface area which it exposes to a strong sun and an intensely dry air, it loses by evaporation all the water it receives by the river from Titicaca and probably a little more, for it seems to be now shrinking. When Titicaca, itself probably subsiding, has still less to give, Poopo will disappear altogether, and this plain will become a sheet of glittering salt.[45]
As one pursues the journey farther south, the country becomes always more arid, and at Uyuni, the next town of consequence, it is a veritable desert where only the smallest stunted shrubs are seen among the sand and stones. This uninhabited region will soon be a converging point of railroads, for it is here that the existing line from La Paz to the Pacific coast at Antofagasta is to be joined by the new railway which is to be constructed to provide a quick through route from central Bolivia to the Atlantic coast at Buenos Aires. Its completion from Uyuni to Tupiza near the Argentine border is expected by 1916, and when the link has been made, there will be a complete railway connection across the Continent from the River Plate to the Pacific at Arica. Bolivia has hitherto suffered greatly from the want of communications, so when La Paz has been brought within twenty-four hours of the one ocean at Arica and within seventy-two or eighty hours of the other at Buenos Aires, a great impetus ought to be given to her export trade. This lofty and desert part of Bolivia finds its only source of wealth in minerals. The Western Cordillera is especially rich in copper and silver, the Eastern in gold and tin. One-third of all the world's production of tin now comes from Bolivia. Besides the silver found in various places,—the great silver mountain is still worked at Potosi,—the eastern spurs of the Peruvian and Bolivian Andes are believed to contain plenty of gold, which would be extracted from the gravels, perhaps from rock reefs also, much more extensively, but for the extreme difficulty of conveying mine machinery across the mountains down abrupt slopes and through trackless forests. It was from these East Andean regions that the Incas obtained those vast stores of gold which excited the cupidity of the Spaniards. Pizarro got from Atahuallpa a quantity roughly estimated at £3,000,000 ($15,000,000) on a promise that the Inca's life would be spared,—a promise broken as soon as most of the gold had been delivered. Yet the contemporary Spanish annalists declare that what the Spaniards laid their hands upon first and last in the days of the Conquest was much less than what the Indians buried or threw into the lakes when they could no longer guard it. Great, however, as is the mineral wealth of the Bolivian highlands, it is less on them, than on the development of the agricultural and pastoral resources of the eastern part of the republic that future prosperity must in the long run depend. Mines are a transitory source of wealth; they enrich the foreign capitalist rather than the nation itself; they do not help to build up an intelligent and settled body of responsible citizens.
It is not solely for the sake of industry and commerce that Bolivia may welcome the advent of railways. She is the least naturally cohesive and in some ways the least nationally united of South American states. Europeans and North Americans hear but little about her, and underestimate the difficulties she has had to contend with. Imagine a country as big as the German and Austrian dominions put together, with a population less than that of Denmark, four-fifths of it consisting of semicivilized or uncivilized Indians, and the few educated men of European or mixed stock scattered here and there in half a dozen towns, none of which has more than a small number of capable citizens of that stock. An energetic monarch with a small but efficient and mobile army might rule such a country, but it offers obvious difficulties to the smooth working of a republican government, for one of the essentials to such a government is that the minority of competent citizens, be they many or few, should be in easy communication with one another, capable of understanding one another and of creating a public opinion. This has hitherto been difficult, owing to the want of railways, for Santa Cruz, Cochabamba, and Sucre (Chuquisaca) have all been a many days' journey from one another and from La Paz. These towns know little of one another and are mutually jealous. The old Spanish-colonial element in them regards with disfavour the larger but more Indian La Paz. Sucre is made the legal capital, but neither it nor any other city has both the size and the central position that would qualify to act as a unifying force. There is hardly any immigration, and little natural increase of population, so the vacant spaces do not fill up, even where they are habitable. Anything, therefore, that will help both to increase the material prosperity of Bolivia and to draw its people together will be a political benefit.
Besides the railway which is to run from Uyuni to Buenos Aires, five other lines through the High Andes are likely to be constructed. One is to connect Cuzco with the existing railway from Lima to Oroya, a wonderful line, which reaches a height of 15,600 feet. A second will continue that line eastward to the Ucayali River. A third is also to cross the Eastern Cordillera from Tirapata (north of Lake Titicaca) to the river Madre de Dios. A fourth will run from La Paz down the canyon of its torrent to the river Beni. A fifth will connect Potosi with a port upon the Paraguay River via Sucre and Santa Cruz. The opening of these communications must accelerate the development of Peru and Bolivia.
Uyuni is smaller than Oruro, and even less attractive. It has an enormous empty plaza and four wide streets of mud houses. Standing at 12,500 feet above sea-level, in a dry and cloudless air, where the radiation of heat is great the moment the sun goes down, we found the later hours of night so cold that the water froze inside our sleeping car, while the heat of the day, reflected from the desert floor, is no less intense. There is a famous mine at Pulucayo, in the eastern mountain range,—some ten miles distant from Uyuni and fifteen hundred feet above the town. We mounted to it by a little railway and were struck by the appearance of vegetation when we had risen some hundreds of feet above the torrid plain. Conspicuous was a cactus-like plant, with white, silky hairs, lifting its prickly fingers ten feet up, and ending in clusters of brilliant crimson blossoms. The staff of the French company who work the mine received us hospitably and explained the processes of extraction and the way in which electricity is applied to do the work. Silver, copper, zinc, lead, and iron are all found associated here; and shafts one thousand feet deep are sunk from the long galleries, driven far into the mountain, one of which goes right through to Huanchaca on the other side. A town of six or seven thousand people has grown up, to accommodate the labourers, all Indians or Cholos.[46] A church and school and tiny theatre have been built for them, and as their hardy frames can support the cold and the thin air, they seem cheerful and contented. The contrast between the refined appliances of modern science and the rudeness of semicivilized man never seemed sharper than when one saw this machinery and these labourers.
From this height of about fourteen thousand feet one could look for more than a hundred miles over the desert,—and such a desert! Many of us can remember the awe and mystery which the word Wilderness in the Old Testament used to call up in a child's mind. When a boy reads of the Desert of Sahara, he pictures it as terrible and deathful. After he has grown up and travelled outside Europe, the only continent that has no wildernesses, and has seen the deserts on either side of Egypt, or the Kalahari in South Africa, or the deserts of India, or Arizona, or Iceland, he comes to realize that a large part of the earth's surface is desert, and that deserts, if awful, can have also a beauty and even a charm of their own.[47] This may not seem to the practical mind to be a sufficient final cause for their existence, but that is a side issue, and philosophy has, since Bacon's time, ceased to enquire into final causes. Of the deserts I have named, those of northern Arizona are perhaps the most beautiful, but this high plateau of southern Bolivia, while very different, is not less impressive.
Right in the midst lay a sparkling plain of white. It was a huge salt marsh, on which the salt crystals shone like silver, for at this season it looks dry, though soft enough to engulf and entomb in its bottomless depths of mud any misguided wayfarer who may attempt to cross it. Beyond it to the northwest and north the waste of sand stretched out to the horizon, while southwest and south long ranges of serrated mountains ran hither and thither across the vast expanse, as if they had been moulded on a relief map, so sharp and so near did they seem to lie, though fifty miles away. Some were capped or streaked with snow, indicating in this arid land a height of seventeen thousand feet.
The splendour of such a view consists not only in the sensuous pleasure which the eye derives from the range of delicate tints and from the fine definition of mountain forms, hardly less various in their lines than they are in their colours, but even more in the impression which is made on the imagination. The immensity and complexity of this nature speak of the vast scale on which natural forces work and of the immense spaces of time which their work has occupied.
Returning to the railway at Uyuni, we set off in the afternoon on our southward way across the desert floor, here perfectly flat and about 12,000 feet above the sea. A deep red soil promised fertility if water could be brought to it, but there was not a tree nor a house, though many a mirage shewed shining water pools and trees around them. Rocky hillocks rising here and there like islands strengthened the impression that this had been in some earlier age the bed of a great inland sea, larger than Lake Superior in North America, stretching from here all the way to the Vilcañota peaks north of Titicaca, and including, besides Titicaca itself, the salt lagoon of Poopo and the white salt marsh we had seen from the heights of Pulucayo. Subterranean forces which, as we know, have been recently at work all over these regions, may have altered the levels, and alterations of level may, in their turn, have induced climatic changes, which, by reducing rainfall, caused the inland sea to dry up, as the Great Salt Lake of Utah and the Aral Sea are drying up now. Looking eastward, we could see heavy clouds brooding over the eastern ranges, which shewed that beyond it lay valleys, watered by the rains which the trade-wind brings up from the far-distant Atlantic. Presently the sweetest hour of the day came as the grey sternness of the heights to the south softened into lilac, and a pale yellow sunset, such as only deserts see, flooded the plain with radiance. The night was intensely cold, and next morning, even at eight o'clock, the earth was frozen hard in the deep, dark hollow where the train had halted.
We were now just inside the Chilean frontier, in the heart of the Western Cordillera, among some of the loftiest volcanic mountains of the Continent. On one side a branch line of railway, the highest in the world, begins its long climb to the Collahuasi copper mine. On the other side, there rose above us the huge black mass of Ollague,[48] snow patches on its southern side and steam rising in wreaths from a cleft not far below the summit. We guessed the height at 19,000 feet. The Collahuasi mine is nearly 16,000. Beside us was what seemed a frozen lake, which glittered white when the welcome sun began to overtop the heights and warm our shivering bodies. Although the height is only 12,200 feet, this is a particularly cold spot, and the one place on the line which is liable to severe snowstorms. We had reached the smaller of the two famous lakes of borax, parts of which are water holding borax in solution, while the rest is mud covered with the valuable substance. They have neither influent nor outlet. This place, and a similar lake in Peru, not far from Arequipa, furnish the world with a large part of its supply, the rest coming from California and Siberia and Tibet, where the conditions of a rainlessness that keeps the deposit from being washed away out of the soil are somewhat similar. Presently we reached the larger lake, which is twelve miles long and two to five wide, and stopped to see the method of gathering and preparing the mineral. One end of the (so-called) lake is dry, a thin stratum of whitish earth covering the bed of borax, which is about three feet thick. When dug out, the mineral is spread out on the ground round the works to dry, and then calcined in furnaces, forming a white mass of crystals, which are packed in sacks and sent down to the coast to be shipped to Europe and there turned into the borax of commerce. A large number of labourers are employed in this lonely and cheerless spot fifty miles from the nearest village. When I asked what fuel was used for the furnaces, they pointed to a long wire cable stretched through the air from the works to a point high on the mountain side opposite Ollague. Down this rope small cars were travelling, containing masses of a kind of very hard, stiff plant with whitish flowers so inconspicuous that it is usually taken for a sort of moss.[49] It grows abundantly on the slopes between eight and fourteen thousand feet, and its thick hard cushions have to be cut out with a pickaxe. Being very resinous, it burns with a fierce flame, but so quickly that large masses must be constantly thrown in to keep the fire going. Hardly anything else grows on the mountains, but they are inhabited by the little chinchilla, whose light grey fur, exquisitely soft, fetches a high price in Europe.