A geological feature is a natural formation on the Earth's surface, shaped by various geological processes over time. These features can include mountains, valleys, rivers, and cliffs, each formed through processes like erosion, sedimentation, and tectonic activity. Understanding these features helps scientists learn about the Earth's history and the forces that have shaped its landscape. Examples of geological features include the Grand Canyon, which was carved by the Colorado River, and the Himalayas, formed by the collision of tectonic plates. Studying these formations provides insight into the planet's geological activity and the environmental conditions that existed in the past.