Historical Features are physical or cultural features that are no longer visible on the landscape. Examples: a dried up lake, a destroyed building, a hill leveled by mining. The term makes no reference to the age, use, or any other aspect of the feature. A ghost town, for example, is not a historical feature if it is still visible.
Arch - Natural arch-like opening in a rock mass (bridge, natural bridge, sea arch).
Additions and/or corrections to the database are encouraged! Simple Add/Edit Procedure.
