North of the Baltic resort Binz, between Prora and Mukran, the flint fields are located in the nature reserve of the Schmalen Heide.
Its uniqueness makes the Narrow Heath with the stone fields a natural phenomenon of international rank. The nature reserve of the Narrow Heath covers 40 hectares. The main component is 14 successive boulder fields about two kilometers long, running parallel to the Baltic Sea coast. They are composed of 90 percent flints, the rest are crystalline boulders of Nordic origin. The gray-white shimmering flints are about one meter high. In between there is a scattered vegetation with trees, shrubs, lichens and heather. The stone walls were raised 3,500 to 4,000 years ago by a number of strong storm floods. At that time the sea level was one to one and a half meters higher than today. The small Jasmund Bodden was an open sea bay at that time. The flintstone fields are a popular destination for excursions. A hiking trail is signposted from Mukran (parking lot "Feuersteinfelder").