River Tarn

A river tarn is a small mountain lake formed in a natural depression, often created by glacial activity. When glaciers recede, they leave behind hollows in the landscape that fill with water, resulting in these tarns. They are typically found in high-altitude regions and may be fed by rainfall, snowmelt, or groundwater. River tarns contribute to local ecosystems by providing habitat for various aquatic plants and animals. They are important indicators of environmental change and glacial history, offering insight into the Earth's geological past and ongoing climatic processes.