Which of the following describes the purpose of supplementary terrain features?

The purpose of supplementary terrain features is to enhance navigational clarity, which plays a crucial role in terrain flight operations. These features help aviators better understand their surroundings, allowing them to interpret the landscape more effectively during flight. By providing additional points of reference, supplementary terrain features aid in navigation and situational awareness, ensuring that pilots can confidently execute maneuvers in proximity to the terrain.

Understanding these supplementary features as enhancements to the primary terrain features helps pilots navigate with greater precision. When pilots can easily interpret and recognize additional features, they can make more informed decisions, which is essential for safety and effective flight planning.