The geographical term that describes an area of flat land elevated above the surrounding area is a plateau. Plateaus are typically characterized by their flat topography and steep sides, resulting from geological processes, such as volcanic activity or erosion. They provide unique habitats and ecosystems, often featuring distinct vegetation and wildlife. Some well-known plateaus include the Tibetan Plateau, which is the highest in the world, and the Colorado Plateau in the United States, known for its striking landscapes and national parks.