The capital is Asunçion , at the confluence of the Pilcomayo and Paraguay.
The northernmost part of the country is drained by the Pilcomayo and the Vermejo, which both fall into the Paraguay.
Important tributaries are the Pilcomayo, the Vermejo, and the Salado.
Soon on the right we reached the Argentine frontier post of Pilcomayo, on the long and narrow river of that name.
It was the Pilcomayo, one of the most considerable affluents of the Rio Paraguai.
Look at the horses; before we have got half the distance which separates us from the Pilcomayo, the enemy will be upon us.
Mr. Graham Kerr saw it in troops on the banks of the Pilcomayo river.