Talus
Talus, in general, denotes two related concepts in different fields. In geology, talus, also called scree, is a cone- or apron-shaped accumulation of rock fragments at the base of a cliff or mountainside produced by physical weathering and gravity-driven rockfall. The material is typically angular and unsorted, ranging from small pebbles to large boulders. Talus deposits form talus slopes or talus cones that broaden at the base, and may create a broad apron of debris. They reflect processes such as freeze–thaw weathering, rockfall, and seasonal avalanching, with climate and rock properties influencing fragment size and stability. Talus slopes can be unstable and are prone to renewed rockfall after disturbances or rapid warming.
In anatomy, the talus is one of the tarsal bones of the foot, also called the astragalus.