👉 Underhill is a term in geography that refers to a steep, narrow mountain ridge located at an elevation of less than 300 meters (1,000 feet) above sea level. It is often associated with the White Mountains of New England and the Appalachian Mountains of North America, where it can be found along the Appalachian Trail. The name comes from the Greek word "under" meaning below or under the mountain, and "hill" referring to a steep slope.
