LAVA-FLOWS 
the centre was another deep depression, possibly an 
extinct crater, too. This second crater was to the north 
of the high-domed crater described above. 
In the near west we had mere undulations over which 
we gradually travelled, but the country was getting much 
more disturbed than it had appeared since leaving the 
Araguaya River. Due west, farther away, stood a weird¬ 
looking plateau with a vertical high wall to the north. To 
the south it showed three terraces, the two lower ones 
supported on perpendicular cliffs, whereas a convex slope 
was between the second and third, or top terrace. To the 
southwest, in the far distance, another high plateau could 
be perceived, also with vertical cliffs to the north, but 
slanting at its southern end — a shape characteristic of 
nearly all the isolated mountains of that zone. 
Looking south, we perceived great tongues of lava 
extending from east to west, the eastern point being 
higher than the western, showing that the lava had 
flowed there from east to west. Then there was also a 
great, sloping, grassy slant, possibly over another exten¬ 
sive lava-flow, from the crater we had examined. Extend¬ 
ing toward the southwest was another tongue of lava of 
great width when measured from northwest to southeast, 
the latter (southeast) being its lowest point. On its 
northeast side this great flow had a high, vertical face. 
Between these enormous tongues of lava, east to west and 
southeast to northwest, was a depression or channel 
extending as far as a distant high dome, in three terraces 
to the southwest. On our course we came upon more 
curious, flattened, eruptive rocks, which had split, on 
falling with great force to earth, after having been ejected 
from a volcano. 
Other parallel ranges could be clearly perceived. 
To bearings magnetic 160° were again to be seen our 
old friends, the two strange, gabled-roof and tower 
mountains. 
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