Which of the following are considered supplementary terrain features?

Supplementary terrain features refer to specific types of landforms that provide additional detail in understanding the landscape, especially in navigational contexts. These features can help in identifying locations and navigating through different terrains.

"Cut and Fill" are considered supplementary terrain features because they describe alterations to the natural landscape resulting from construction or engineering projects. "Cut" refers to the excavation of earth, while "Fill" involves the placement of material to raise the land. These changes create distinct forms that can be recognized on a map and provide critical information about the terrain's modified state, which aids in navigation and land assessment.

In contrast, terms like "Hill and Valley," "Cliff and Draw," and "Spur and Ridge" refer to primary landforms or features that are not classified as supplementary. These terms describe the fundamental aspects of the terrain rather than specific alterations made to it. Thus, they do not fall under the category of supplementary features despite being important for understanding the overall geography.