Rock Edge Nature Reserve is a small

nature reserve A nature reserve (also known as a wildlife refuge, wildlife sanctuary, biosphere reserve or bioreserve, natural or nature preserve, or nature conservation area) is a protected area of importance for flora, fauna, funga, or features of geologic ...

and park in an area that was once a limestone

quarry A quarry is a type of open-pit mining, open-pit mine in which dimension stone, rock (geology), rock, construction aggregate, riprap, sand, gravel, or slate is excavated from the ground. The operation of quarries is regulated in some juri ...

Headington Headington is an eastern suburb of Oxford, in the county of Oxfordshire, England. It is at the top of Headington Hill overlooking the city in the Thames valley below, and bordering Marston, Oxford, Marston to the north-west, Cowley, Oxfordshire ...

, east

Oxford Oxford () is a City status in the United Kingdom, cathedral city and non-metropolitan district in Oxfordshire, England, of which it is the county town. The city is home to the University of Oxford, the List of oldest universities in continuou ...

England England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...

. The local geology is made up of an old tropical

coral reef A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in group ...

, with coral outcrops surrounded by old sand bottom beds, similar to what is found in the waters around the

Bahamas The Bahamas, officially the Commonwealth of The Bahamas, is an archipelagic and island country within the Lucayan Archipelago of the Atlantic Ocean. It contains 97 per cent of the archipelago's land area and 88 per cent of its population. ...

today. A small track leads meanders around the old quarry, where fossils of ancient marine creatures can still be found.

Site of Special Scientific Interest

The Rock Edge quarry at the site is a

Site of Special Scientific Interest A Site of Special Scientific Interest (SSSI) in Great Britain, or an Area of Special Scientific Interest (ASSI) in the Isle of Man and Northern Ireland, is a conservation designation denoting a protected area in the United Kingdom and Isle ...

(SSSI). The site covers 4 acres (1.6 hectares). The site was formerly known as Crossroads Pit and has also been called Windmill Quarry since it was located just south of the main windmill in Headington. The name Cross Road Quarry has also been used.

References

1972 establishments in England Nature reserves in Oxfordshire Parks and open spaces in Oxford {{Oxfordshire-geo-stub