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Staggered plateaus with groups of low, flat and isolated hills are found
in this region. Small thorny bushes are the predominant vegetation. The coirón
is the typical species, and also chañares and espinillos can be
found. Trees do not grow here and those planted grow tilted by effect of the
The dryness and desolation of the plateau is only interrupted by the oases on the coast of the few rivers crossing it, like the Río Negro, Chubut and Deseado.
These form attractive valleys. The Río Negro is the largest river in
terms of volume of water. The most populated area of Patagonia is located up
Central Patagonia is mostly unknown and the least visited area, but traveling through it is a marvelous experience; beyond the valleys, the desert reminds us of the Earth as it once probably was.