The major geographic feature primarily found in Tibet is the Tibetan Plateau, often referred to as "the Roof of the World". This vast high-altitude region is characterized by its significant elevation, with many mountain ranges, including the Himalayas, surrounding it. The plateau has unique climate conditions and supports unique ecosystems and cultures. It plays a crucial role in influencing regional weather patterns and is the source of several major rivers in Asia, including the Yangtze, Yellow, and Indus Rivers.