Long Dale is a carboniferous limestone valley near the village of Elton, Derbyshire, in the Peak District of England.

On the spoil heaps of the old lead mines there are rare flowers such as spring sandwort (Minuartia verna) and alpine pennycress (Thlaspi alpestre).

Native grasses include meadow oat and carnation sedge interspersed with heather, bilberry and dwarf gorse.

They were excavated by Thomas Bateman in 1857 and he found numerous human skeletons, flint tools and a decorated Beaker pottery drinking vessel.

[7] Just south of the head of Gratton Dale are the remains of Mouldridge Grange, which was a medieval farmstead run by monks from the Augustinian priory.