The term REGION BETWEEN HILLS can be summarized as a VALLEY, which is a low-lying area of land between two higher areas of land, such as hills or mountains. Valleys are typically formed by erosion and the movement of water, and they often contain rivers or streams. Valleys are important for agriculture, as they provide fertile soil and shelter from wind and extreme temperatures. Valleys are also popular tourist destinations, as they often contain beautiful scenery and unique wildlife.