A key feature of the Interior Plains' geography is Flat and gently rolling terrain.

The Interior Plains are known for their expansive, mostly flat landscape with some gently rolling hills. This region lacks significant mountainous or volcanic activity, and large bodies of water are not prominent geographic features. The vast, open terrain of the Interior Plains makes it ideal for agriculture and grazing. While there are forests in certain areas, especially along rivers, dense forests are not characteristic of the region as a whole. The plains provide rich farmland, supporting crops like wheat and corn, and are essential to North America's agricultural output.