Valley Landform Concepts

This group collects the Valleys subcategory's members that describe a general class of valley landform rather than one named, located feature: the valley as a landform in its own right, and closely related terms such as the glen, distinguished from a valley chiefly by regional English usage rather than by a different mode of formation. These entries explain how a type of feature forms and where it is typically found, rather than describing one specific instance of it, so they do not fit any single continent group and are kept together as the subcategory's own conceptual, cross-continent entries.