This river flows eastward and joins the apurimac, forming the Rio Tambo.
Some, like the apurimac and the Maraon, extend well into the interior of the Cordillera.
It is known as the apurimac only down to the mouth of the Mantaro tributary, 11 45′ S. lat.
In that volume is a marvelous picture of the apurimac Valley.
They were sent back by one of the western routes across the apurimac.
The Mapillo flows into the apurimac near the mouth of the river Pampas.
He must have had rafts or canoes on which to cross the apurimac, which is here very wide and deep.
So deep are some of the main canyons, like the apurimac and the Cotahuasi, that their floors are arid or semi-arid.
At Pasaje, on the western side of the apurimac, the Carboniferous again appears resting upon the old schists described on p. 236.
The climb out of the apurimac canyon, even without packs, left them completely exhausted.