Denmark
Norway
Main iron-region A1A
Bohuslän/Västergötland/Halland, Sweden
Bor District, Serbia
Böhmen/Erzgebirge
Cévennes, France
Champagne/Burgundy, France
Southern Germany
Denmark / Southern Sweden / Northern Germany
Dublin area, Ireland
Eidsborg, Telemark, Norway
Haderslev area, Denmark
Jutland, Denmark
Viborg area, Denmark
Varde area, Denmark
Western Denmark
Haithabu, Germany
Mittle - and northern Germany
Celtic northern France and western Germany
Cypern and Anatolia
Area around Limfjorden, Denmark
Borgeby, Scania, Sweden
Bornholm, Denmark
Lund, Sweden
Area around Lübeck and Wismar, Germany
Mecklenburg, Germany
Middle Rhine region, Germany
Middle - and Western Jutland (Skanderborg - Skjern), Denmark
Maas Valley, Belgium
Northern England around Yorkshire
Northern Zealand, Denmark
North Sea
Northwestern England, Cornwall and Siegerland/Eifel in Germany
Rogaland/Trøndelag/Nordland/Troms/Finnmark, Norway
Norway and northern/central Sweden
Norway and Sweden
Northumberland and northern part of the Pennine Chain
Kosel, Germany
Ribe area, Denmark
Wolin area, Polen
Odense area, Denmark
Ockholm area, Germany
Coastal area in Niedersachsen
Area around Baltic Sea
Area around Oslofjord, Norway
Pennine Chain, Northumberland and around Alderly Edge, Mendips  and Bristol, England
Rhine region and around Mainz, Germany
Area around Roskilde, Denmark
Eastern Scania, Sweden
Southern Jutland, Denmark
Scania and Halland, Sweden
Norway and Scania
Scotland
Area around Aachen og Köln, Germany
Zealand, Denmark
Scania, Sweden
Snorup, Varde, Denmark
Great Britain
Southern Norway
Valdres, Norway
Southern Norway and Scania
Southern Zealand, Denmark
Southern Sweden
Southwestern Denmark and Slesvig
Southwestern Jutland, Denmark
Tamdrup area, Haderslev, Denmark
Tarm area, Ringkøbing, Denmark
Tissø area, Denmark
Trelleborg area, Denmark
Siegerland and Schmalkalden, Germany
Jutland and Schleswig
Västergötland, Halland and Scania, Sweden
Vestfold, Norway
Western Jutland, Denmark
Vestlandet, Norway
Western England and Cévennes, France
Western Norway
Villumstrup area, Funen, Denmark
Västergötland and southwestern Scania, Sweden
Øresund
Eastern Denmark
Area around Eastern Mediterranean Sea, Bulgaria
Southern France
Ireland
Iran
Erzgebirge, Slovakia
Eastern Alps and Erzgebirge, Slovakia
Western England (Derbyshire, Cumberland, Somerset and nothern Wales)