Definition: The term "butte" is a name for a mountain range in North America. Buttes are long, narrow hills with steep sides that rise gradually from their base and approach a peak. They can be found on both the eastern and western sides of mountains, along streams, or on higher elevations. Buttes are often associated with the Rocky Mountains, where they are part of the Cascades Range in Washington State, Oregon, and California. Butte's name comes from the Norse word "