Which list accurately names all five major terrain features on a map?

• A. Hill, Valley, Ridge, Saddle, Depression
• B. Hill, Plain, Ridge, Saddle, Depression
• C. Hill, Valley, Ridge, Plateau, Depression
• D. Valley, Saddle, Depression, Plain, Ridge

Answer: (A)

In map reading, you learn to identify the land’s shape using five principal terrain features: hill, valley, ridge, saddle, and depression. This set covers the main forms you’ll encounter on a topo map, including high ground, low ground, and the key pass between elevated areas. It’s the standard grouping used for quick terrain association in military navigation because these shapes recur most often and are most useful for planning routes and anticipating line-of-sight, cover, and drainage.

A hill is shown by closed contour lines that enclose a high point, with elevations rising toward the center. A valley is a low area where contour lines form shapes that point uphill, often guiding a river or stream along the bottom. A ridge appears as a long, narrow crest with contour lines that outline a high elongated crest; the spacing and shape indicate extended high ground. A saddle is a low point between two rises—a pass or dip that connects two valleys or two ridges, visible where contour lines form a shallow notch between higher segments. A depression is a low area whose contour lines close in on themselves with hatch marks indicating downward-referencing direction.

Other landforms like plains or plateaus aren’t part of this five-feature set, even though they’re important in broader geography. This combination—hill, valley, ridge, saddle, depression—is the complete list of the five major terrain features used for rapid map interpretation.