Intervale is a term used to describe a lowlying area of flat or gently sloping ground that lies between hills or mountains, often traversed by a river or stream. Some synonyms for this word include glen, valley, dale, hollow, bottomland, and flood plain. These words describe the same type of landform, but may be used in different regions or contexts. Glen is often associated with Scottish landscapes, while the term valley is used more broadly around the world. Dale has a more rural connotation, and hollow tends to be used in the Appalachian region of the United States. Bottomland is a term used to describe fertile agricultural land, while flood plain implies that the land is subject to periodic flooding.