A river valley is a low area of land between hills or mountains, typically formed by the erosion of a river over time. These valleys often have fertile soil, making them ideal for agriculture and human settlement. The shape of a river valley can vary, with some being wide and flat, while others are narrow and steep. River valleys are important ecosystems that support diverse plant and animal life. They often serve as natural corridors for wildlife and can be home to various habitats, including wetlands and forests. Additionally, river valleys are significant for transportation, recreation, and tourism, attracting visitors to enjoy their scenic beauty and outdoor activities.