White Peak
The White Peak, also known as the Low Peak, is a limestone plateau that forms the central and southern part of the Peak District in England. It is mostly between and above sea-level and is enclosed by the higher altitude Dark Peak to the west, north and east.
Area
Broadly speaking, the White Peak covers the Derbyshire and Staffordshire parts of the Peak District from the Hope Valley southwards to the Weaver Hills near the Churnet Valley. As defined by Natural England, the White Peak national character area covers and includes the area approximately bounded by Ashbourne, Buxton, Castleton, Matlock and Wirksworth.Geology and soils
The geology of the White Peak has its origins in the Carboniferous Period, when the area was under a shallow sea that was fringed by reefs, leading to thick deposits of shelly calcareous material. Over millions of years the area rose up and subsided several times, leading to muddy, sandy and peaty deposits overlying the calcareous shells. Compression turned the deposits into rock - the shells became limestone, and the overlying deposits became gritstone, shales and coal. Further uplifting and folding raised the area into an anticline, then subsequent erosion removed the younger deposits to expose the limestone. The limestone consists of three types: pale grey, thickly bedded, gently dipping shelf limestone of much of the central plateau; darker grey, more thinly bedded, more folded basin limestone in the south west; and hard, unbedded reef limestone that forms cone-like hills on the plateau periphery.Limestone is porous, so caves, limestone gorges and dry valleys are common features of the area. The soils are mostly derived from loess deposited by cold winds in the last part of the last glacial period. Notable valleys in the White Peak include Dovedale, Monsal Dale, Lathkill Dale and the Manifold Valley. 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.