What term is used to describe a series of depressions in the terrain?

The term "draws" is used to describe a series of depressions in the terrain. In topographical terms, draws are typically characterized by their V-shaped or U-shaped profiles and serve as channels that can direct water runoff. The presence of draws often indicates areas where drainage may occur, leading down to lower elevations. This is significant for pilots and navigators who need to understand the terrain configuration for navigating effectively and avoiding obstacles.

The other terms mentioned describe different terrain features; saddles are the low points between two higher elevations, ridges are elongated areas of high ground, and hills refer to elevated landforms, none of which specifically denote a series of depressions as draws do. Understanding these distinctions is crucial for effectively interpreting terrain and planning flight routes, enhancing situational awareness during operations.