Which of the following is a major terrain feature?

A major terrain feature is typically defined as a significant and recognizable natural formation that can be utilized in military planning and navigation. Hills are categorized as major terrain features because they provide distinct elevation changes that can influence movement, visibility, and strategy during operations. They can serve as landmarks and play a critical role in determining line of sight, cover, and concealment, making them essential for tactical decisions.

In contrast, while streams, fields, and forests may serve as important terrain elements, they do not possess the same level of significance as hills in terms of elevation and influence on military tactics. Streams can change shape and location, fields may vary in size and visibility, and forests can create concealment but do not fundamentally alter the landscape in the way that hills do. Therefore, the identification of a hill as a major terrain feature reflects not only its prominence but also its tactical importance in a military context.