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Flint fields () are large natural deposits of
flint Flint, occasionally flintstone, is a sedimentary cryptocrystalline form of the mineral quartz, categorized as the variety of chert that occurs in chalk or marly limestone. Historically, flint was widely used to make stone tools and start ...
. They are found in numerous Jurassic and
Cretaceous The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ...
beds across the whole of
Europe Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...
.''Breege''
at www.ruegenurlaub.de. Retrieved 19 Jun 2019
Such deposits may be found in
Aachen Aachen is the List of cities in North Rhine-Westphalia by population, 13th-largest city in North Rhine-Westphalia and the List of cities in Germany by population, 27th-largest city of Germany, with around 261,000 inhabitants. Aachen is locat ...
-Lousberg, Kleinkems, Schernfeld, Osterberg bei Pfünz, Baiersdorf, Abensberg- Arnhofen and Lengfeld as well as the German island of Rügen.


Flint fields on Rügen

The flint fields on Germany's biggest island, Rügen, between Mukran and Prora in the northern part of the heath of Schmale Heide are part of the Stone Fields in the Schmale Heath and Extension nature reserve. They were also called the ''Steinernes Meer'' ("stony sea") and have an area of 40 hectares (2,000 × 200 metres). During a series of storm floods, 3,500 to 4,000 years ago, the stones, from the Cretaceous deposits on the Jasmund peninsula which had been broken up by the sea, were piled up here. The layer of flints is so thick that it does not allow more than a sparse vegetation layer. In 1840 the ''Schmale Heide'' was planted with a pine wood, which surrounds the flint fields today. Since 1935, when the region was given conservation status, many trees, bushes and other plant species have been able to develop undisturbed. By the middle of the 19th century and, for the last time in the mid-1970s to the early 1990s, attempts were made to protect the 14 open flint embankments from becoming overgrown, using perimeter fencing in places and introducing wildlife. The flint fields are a well-known tourist destination (). They cannot be accessed directly by car. Car travellers can park for a fee in the car park at the southern end of Neu Mukran and follow the two to three kilometre trail. The area can be reached by bicycle also from the south. The route to the southern end of the flint fields is a well maintained and picturesque woodland path which branches off () the old B 196a federal road immediately north of the caravan park (former traffic testing area). The nearest railway stop is Prora, around 2½ kilometres south of the area and five hundred metres south of the traffic testing area.


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{{Commonscat-inline, Flint fields Flint (rock) de:Feuersteinfelder