Personal Narrative Of Travels To The Equinoctial Regions Of America During The Years 1799-1804 - Volume 2 - By Alexander Von Humboldt And Aime Bonpland.
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This Phenomenon Was Discovered By The
Franciscan Monks, Who Go Down From Ceja By The Rio Fragua To Caqueta.
A Solitary Hill, Emitting Smoke Night And Day, Is Found On The
North-East Of The Mission Of Santa Rosa, And West Of The Puerto Del
Pescado.
This is the effect of a lateral action of the volcanoes of
Popayan and Pasto; as Guacamayo and Sangay, situated also at the foot
of the eastern declivity of the Andes, are the effect of a lateral
action produced by the system of the volcanoes of Quito.
After having
closely inspected the banks of the Orinoco and the Rio Negro, where
the granite everywhere pierces the soil; when we reflect on the total
absence of volcanoes in Brazil, Guiana, on the coast of Venezuela, and
perhaps in all that part of the continent lying eastward of the Andes;
we contemplate with interest the three burning volcanoes situated near
the sources of the Caqueta, the Napo, and the Rio de Macas or Morona.
The little group of mountains with which we became acquainted at the
sources of the Guainia, is remarkable from its being isolated in the
plain that extends to the south-west of the Orinoco. Its situation
with regard to longitude might lead to the belief that it stretches
into a ridge, which forms first the strait (angostura) of the
Guaviare, and then the great cataracts (saltos, cachoeiras) of the
Uaupe and the Jupura. Does this ground, composed probably of primitive
rocks, like that which I examined more to the east, contain
disseminated gold?
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