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.
Bend - Curve in the course of a stream and (or) the land within the curve; a curve in a linear body of
water (bottom, loop, meander).