Which of the following is a major terrain feature?

• A. Hill
• B. River
• C. Forest
• D. Plain

Answer: (A)

Major terrain features are the large-scale relief elements that shape how units move, observe, and fight. They include hills, ridges, valleys, saddles, and depressions. Among the options, the hill fits this category because it’s a prominent elevated feature that can dominate the surrounding terrain, giving observation and fields of fire advantages and influencing maneuver. A river is a water obstacle rather than a major terrain feature, while forest and plain describe vegetation and surface type, not the large relief form used for terrain analysis. So, the hill is the major terrain feature.