Allington Quarry is a Site of Special Scientific Interest (SSSI) approximately 2 miles northwest of Maidstone, Kent.
The site gained its SSSI status due to the geology unearthed there by the quarrying work. English Nature describes the quarry as "an important site for Pleistocene geomorphology, providing an extensive section through a series of loess-filled gulls." The term gull refers to a rock fault that has in-filled with sediment.
References
Allington Quarry Wikipedia(Text) CC BY-SA