The White Peak is the lower, southern part of the Peak District in England. In contrast to the Dark Peak, the underlying limestone is not capped by impervious millstone grit, so caves and dry river valleys are common features of the area. The soils are poor and calcareous, creating grazing land for both sheep and cattle. The area is of interest to geologists, since much of the underlying strata have been exposed by extensive quarrying, and can be seen in the old railway cuttings along the Monsal Trail through Monsal Dale and Millers Dale.