Locations of the Temperate Grassland Biomes. Temperate grassland biomes can be found in many locations. Often, they are known by different names in the areas where they exist. In South Africa, they are known as veldts.In Argentina and Uruguay, they are called pampas.ocations of the Temperate Grassland Biomes. Temperate grassland biomes can be found in many locations. Often, they are known by different names in the areas where they exist. In South Africa, they are known as veldts. In Argentina and Uruguay, they are called pampas.