Buttes are isolated hills or mountains with steep, often vertical sides and a flat top. They are typically formed through erosion, where softer rock layers are worn away, leaving behind the harder rock that creates the butte's distinctive shape. Buttes are commonly found in arid regions and are often associated with other geological formations like mesas and plateaus. These landforms can vary in size and are often characterized by their unique ecosystems. The flat tops of buttes can support different types of vegetation compared to the surrounding areas. Famous examples of buttes include the Monument Valley in Arizona and Utah, known for their striking landscapes.