This area is known as The White Peak, where the underlying carboniferous limestone forms a gentle landscape of rolling hills with some deep valleys. The fast-flowing clear rivers hold Dippers. The woodlands are ash and alders but on the top of the valleys these are replaced by hawthorn scrub, gorse and broom. The most popular dales are Millers Dale (SK 1473); Monsal Dale (SK 1771); Cressbrook Dale (SK 1773) and Chee Dale (SK 1273).