Flat-topped hills are a type of landform that can be found in many parts of the world. They are characterized by having a flat top and steep sides, and are often formed by erosion or volcanic activity. The three crossword solutions for this term are mesas (5 letters), buttes (6 letters), and lomas (5 letters). Mesas are large, flat-topped hills with steep sides, while buttes are smaller, isolated hills with steep sides. Lomas are small, flat-topped hills with gentle slopes on the sides. All three of these landforms are examples of flat-topped hills.