The Pampas are vast plains that extend across Argentina f. From the Atlantic to the Andean foothills. The Pampas are bounded by Gran Chaco (North) and Patagonia (South). The Pampas is a Quechan word that means flat surface. The Pampas are around 1,640 feet above sea level at Mandoza to around 66 feet at Buenos Aires and are on a downward slope from NW to SE. Except for a few small Sierras around the Northwest/South part of the Pampas, the rest of the region is flat. There are also much smaller plains in different parts of South America that are referred to as the Pampas as well. The Pampas also cover 295,000 square miles which are split into two distinct zones, the dry zone in the West and the humid zone in the East. The East is much smaller but the heart of the country and the most populated part. The soil of the Pampas contains Clay and Sand. But the West is mostly sSandy deserts and barrenBaren. To conclude the Pampas are a good portion of Argentina and beautiful plains with a better economy on the East side.