The Columbia River Plateau is a large, flat region located in the northwestern United States, primarily in the states of Washington and Oregon. It is characterized by its volcanic rock formations and fertile soil, which were shaped by ancient lava flows and the powerful Columbia River. The plateau is an important agricultural area, producing crops like wheat and potatoes. This region is also home to several significant natural features, including the Columbia River Gorge and numerous lakes and reservoirs. The plateau's unique geography supports diverse ecosystems, making it a vital habitat for various wildlife species. Additionally, it has cultural significance for several Native American tribes.