Which key feature describes the Appalachian Ridge and Valley Region?

The Appalachian Ridge and Valley Region is characterized primarily by its unique geology, which includes sandstone ridges and fertile valleys. This region is marked by a series of ridges and valleys that run parallel to each other, leading to a distinctive landscape shaped by erosion and sedimentation. The sandstone ridges are prominent features, while the valleys between them are often rich in soil and support agriculture, contributing to the area’s overall productivity.

The presence of fertile valleys allows for diverse vegetation and farming, differentiating this region from others in the Appalachian Mountains, such as higher mountain peaks found in different areas, which do not align with the characteristics of the Ridge and Valley Region. Additionally, the coastal plains or desert-like terrain do not apply to this region, as it is situated inland and does not exhibit such geography. Thus, the feature of sandstone ridges and fertile valleys is essential in defining the Appalachian Ridge and Valley Region.