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
Geography of Vietnam referred to simply as "the Chaine."), the coastal lowlands, and the Mekong Delta in the south. Vietnam is a country of tropical lowlands, hills, and densely forested highlands, with level land covering no more than 20% of the area. The spectacular Bản Giốc Waterfall is 272 km north of Hanoi and few tourists are seen there. The Red River Delta (also known as the "Sông Hồng"), is a flat, triangular region of 15,000 square kilometers, is smaller but more intensely developed and more densely populated than the Mekong Delta. Once an inlet of the Gulf of Tonkin, it has been