Any of the muscles that are under our voluntary control (skeletal muscles) can cramp. Cramps of the extremities, especially the legs and feet, and most particularly the calf (the classic  charley horse ), are very common.
Northern Europe includes Denmark, Finland, Greenland, Iceland, Norway, and Sweden. This area is known for harsher environments. It is generally cold, has poorly developed soils and limited mineral resources. This region has a population of over 25 million people.
Click on above map to view higher resolution image. Denmark geography information. Denmark consists of a peninsula (Jutland) and many islands, for example, Zealand, Fyn and Bornholm. Greenland, one of the world's largest islands, is self-governing but part of the Kingdom.The eighteen Faroe Islands, which have some degree of self-government, are also part of the Kingdom of Denmark.The country is low and flat with rolling hills.reenland, one of the world's largest islands, is self-governing but part of the Kingdom. The eighteen Faroe Islands, which have some degree of self-government, are also part of the Kingdom of Denmark.