Rangeland in regions too dry to support a forest, but not dry enough to be a desert. Pampas are the fertile South American lowlands that include the Argentine provinces of Buenos Aires, La Pampa, Santa Fe, Entre Ríos and Córdoba, most of Uruguay, and the State of Rio Grande do Sul, in the southernmost end of Brazil covering more than . These vast plains are only interrupted by the low Ventana and Tandil hills near Bahía Blanca and Tandil (Argentina), with a height of and respectively. The climate is mild, with precipitation of to , more or less evenly distributed through
Mesopotamia, Argentina only a thin fertile layer that can easily be washed away. Corrientes is marshy and wooded, with low hills. Entre Ríos is covered with fertile pasture land stretching into Uruguay. The flora of Mesopotamia includes the yatay palm ("Syagrus yatay", "Butia yatay"), which is a protected species in the El Palmar National Park, and the "Araucaria angustifolia" (Paraná pine tree). Tree ferns, orchids and large trees can also be found. "Yerba mate" ("Ilex paraguariensis") is grown largely in Mesopotamia; 1,800 square kilometres of Misiones are devoted to its production. The region is also important for cattle and sheep, poultry, linseed,