Which of the following is a minor terrain feature?

A minor terrain feature is typically characterized by its smaller scale compared to major features like hills or valleys. A spur, which is an upward protrusion of land that extends from a ridge, is considered a minor terrain feature because it does not have the same prominence or significant elevation change as a hill or valley. Minor terrain features like spurs are important for navigation and tactical planning, as they can influence movement and line of sight in the field. Hills and valleys, on the other hand, represent more significant geographical landmarks, which can serve as primary reference points in terrain analysis. A depression, while also a distinct minor feature, is not as prominently recognized as a spur in the context of the other options listed. This understanding of the scale and impact of these features is critical for effective reconnaissance and operational planning in cavalry scouting.