Road transport in South America

transportation system of the Inca empire

thumb|220px|right|The Inca empire and the roads which traversed it thumb|right|A complex of 27 Qullqas above Ollantaytambo, Peru A qullqa ( "deposit, storehouse"; (spelling variants: colca, collca, qolca, qollca) was a storage building found along roads and near the cities and political centers of the Inca Empire. These were large stone buildings with roofs thatched with "ichu" grass, or what is known as Peruvian feathergrass (Jarava ichu). To a "prodigious [extent] unprecedented in the annals of world prehistory" the Incas stored food and other commodities which could be distributed to their