Hills

A hill is a landform that extends above the surrounding terrain. It often has a distinct summit, although in areas with scarp/dip topography a hill may refer to a particular section of flat terrain without a massive summit (e.g. Box Hill, Surrey). ... A hillock is a small hill. Other words include knoll and (in Scotland, Northern Ireland and northern England) its variant, knowe. ... Hills may form through geomorphic phenomena: faulting, erosion of larger landforms, such as mountains and movement and deposition of sediment by glaciers (e.g. moraines and drumlins or by erosion exposing solid rock which then weathers down into a hill.) The rounded peaks of hills results from the diffusive movement of soil and regolith covering the hill, a process known as downhill creep. [Hill. Wikipedia]