A high-altitude lake is a body of water located at a significant elevation, typically above 2,500 meters (8,200 feet) above sea level. These lakes are often formed by glacial activity, volcanic processes, or tectonic movements. They can be found in mountainous regions around the world, such as the Himalayas, Andes, and Rocky Mountains. The unique environment of high-altitude lakes leads to distinct ecosystems, often characterized by cold temperatures and limited oxygen levels. These lakes can host specialized flora and fauna adapted to harsh conditions, including certain species of fish and aquatic plants. High-altitude lakes are also important for local water supply and biodiversity.