They are distributed across Europe and they are usually subdivided by period, region and also into more generic types of chambered long barrows, chambered round barrows, chambered long cairns and chambered round cairns. Examples are known in Catalonia, France, the Low Countries, Germany, The British Isles, Scandinavia, Sardinia and southern Italy.
Allées couvertes or allées sepulchrales (German Galleriegräber) are defined as subterranean megalithic structures. The English gallery grave should be translated as tombe à couloir. Sub-types include: