A terminal moraine is a type of landform created by the accumulation of debris, such as rocks and soil, that a glacier deposits at its furthest advance. This ridge-like formation marks the maximum extent of the glacier's movement and can vary in size and shape. Terminal moraines are often found at the end of glacial valleys and can provide important information about past glacial activity. These landforms are significant in the study of glaciology, the science that examines glaciers and their effects on the landscape. Terminal moraines can also influence local ecosystems by creating unique habitats and affecting drainage patterns. Understanding terminal moraines helps scientists learn about climate change and the history of Earth's ice ages.