Which of the following is considered a major terrain feature?

Hills are classified as a major terrain feature because they represent significant landforms that can affect visibility, navigation, and tactical operations. In terrain flight operations, understanding the various features of the landscape is crucial for effective maneuvering and safety. Hills can dictate flight paths, provide cover or concealment, and influence the terrain's natural drainage and weather patterns.

While cliffs, spurs, and draws are also important terrain features, they are categorized differently. Cliffs are steep rock faces and may not cover as expansive an area compared to hills. Spurs are the protruding points of higher ground that extend out from a ridge, typically smaller in scale. Draws are low-lying areas that can act as channels for movement or water flow but do not have the same prominent elevation change that defines hills. Thus, hills stand out as a significant feature due to their larger scope and the greater impact they can have on terrain operations.