We arrived at the Roncador, a picturesque torrent flowing over a bed of lava moulded in the strangest possible shapes, hollows, terraces and grottoes. Most peculiar were the great concave hollows, circular, oval, and of irregular form, which were innumerable and of all sizes along that extensive flow of lava.
Hideous Types characteristic of Central Brazil.
Two women (left) and two men (right).
We had travelled 30 kil. that day. That was such a picturesque spot that I made camp on the right bank of the torrent. We were all amazed to find an immense block of rock—resembling in size and form the Sphinx of Egypt—balanced to a nicety over the edge of a conical rocky hill. It was, of course, the work of nature. Why that rock remained there at all and did not tumble down, was more than we could understand. There was also a giant monolith and other strange-looking rocks of great size standing up at all angles close by. On climbing the hill where the Sphinx-like rock stood, I discovered a circular crater of great beauty, 300 metres in diameter. The western wall of the crater had been knocked down, but on the eastern inner side, in the central part 150 ft. high, there was a precipitous fall, then a huge smooth inclined plane of lava at an angle of 15° overlapping the top, where it had subsequently been subjected either to violent earthquake shocks or other disturbing influences, as it was badly seamed and fissured. Many segments had crumbled down, leaving the remaining portion of a most extraordinary shape. In the centre of the crater there stood a huge mass of rock 150 ft. high, which looked like an inclined table—a giant slab cleanly cut at its angles, which protruded at great length outside the base formed by broken-up blocks. On looking west from the summit of the extinct volcano one obtained a marvellous view of the vertical cliffs between which the Roncador River flowed.
Then there was a great table-land extending from north to south, composed of red volcanic rock and white limestone. A separate red quadrangular castle-like structure of immense proportions rose in the middle foreground in the north-west upon a conical green grassy base.
Add to this wonderful work of Nature a magnificent sky of gold and brilliant vermilion, as limpid as limpid could be, and you will perhaps imagine why I could not move from the rock on which I sat gazing at that magnificent, almost awe-inspiring, spectacle. Night came on swiftly, as it always does in those latitudes, and I scrambled down the hill, among the sharp, cutting, slippery, shiny rocks, arriving in camp minus a good many patches of skin upon my shins and knuckles.
At the point where I crossed the Roncador River there were three handsome waterfalls in succession, the central one in two terraces, some 90 ft. high. At the foot of the two-tiered waterfall was a great circular basin which had all the appearance of having been formerly a volcanic vent. The flowing water, which tumbled down with terrific force, had further washed its periphery smooth. The centre of the basin was of immense depth. Directly under the fall a spacious grotto was to be seen under a huge projecting rock.
The elevation of the stream above the falls was 2,150 ft., below the falls 2,060 ft. The temperature of the atmosphere was 72° Fahr., and the minimum temperature during the night 58° Fahr.