 The Jurassic limestone rocks are rich in fossils, which are regularly exposed by erosion of the sea cliffs.The English Midlands are predominantly flat in character, although isolated hills such as Turners Hill can command extensive views.Upland areas lie to the north and west, with parts of the Peak District extending to the north while the Shropshire Hills in the west, close to the Welsh border, reach heights of over , including the Long Mynd, Clee Hills and Stiperstones ridge.