Patagonian grasslands Patagonian grasslands The Patagonian grasslands (NT0804) is an ecoregion in the south of Chile, Argentina and the Falkland Islands. The grasslands are home to diverse fauna, including several rare or endemic species of birds. There are few protected areas. The grasslands are threatened by overgrazing by sheep, which supply high-quality merino wool. Efforts are being made to develop sustainable grazing practices to avoid desertification. The Patagonian grasslands extend across eastern Tierra del Fuego in Chile and Argentina from near the southern cone, and cover part of Santa Cruz Province just north of the Strait of Magellan up to the Gallegos
North Patagonian Massif contains the Miocene (Colloncuran) Collón Cura Formation, the Miocene La Pava Formation, and the Miocene Chimehuín Formation in the northern part of the eastern belt. North Patagonian Massif The North Patagonian Massif or Somún Cura Massif (Spanish: "Macizo Norpatagónico", "Macizo Nordpatagónico" or "Macizo de Somún Cura") is a massif in northern Patagonia located in the Argentine provinces of Río Negro and Chubut. The massif is a plateau surrounded by sedimentary basins. The North Patagonian Massif covers an area of approximately . The massif rises above the surrounding topography reaching a maximum of above sea level. Compared to neighboring areas, the