Glacial erratics

20,000 years ago the eastern Denmark and all of Sweden and Norway were covered by a giant glacier. The glacier began its life in the fells of Norway, where the snow did not melt during the summer. On the contrary, there came more and more snow, which at the bottom was compressed into clear ice.

The enormous weight from the increasing amount of snow and ice on top of the glacier made the bottom ice gel-like and it started to move downwards and forward. It spred out, while it transported rocks, boulders, and gravel all the way to Denmark.

Giant rocks was transported by the ice and left as beached whales. Many of these rocks was used by people for prehistoric graves and other constructions, and ‘wild rocks’ have eventually become rare.

Rocks from the ice age

Several rocks in Denmark come from the ice age. You can experience ice age remains in the shape of glacial erratics on trips in the Danish landscape. You can see some of the more special rocks here. Click and experience the ice age in a new way.

There are many funny rocks in Denmark. Some rocks look like something else, others wobble, and some have a funny story. You can see some of the funny rocks here. It could be a great experience, and you can even bring the children.

Find the funny rocks here.

Denmark is full of with well-known rocks. Both the locally and nationally known ones. Some are mentioned here for inspiration to go out into the Danish nature. It is full of great experiences and stories.

Find the well-known rocks here.

Glacial erratics

On the way across Sweden and Norway, the ice tore giant rocks loose and brought them to Denmark. They are called glacial erratics – for example Myrestenen. When the ice melted, the rocks were left in the landscape. Most glacial erratics are granite and gneiss. They are both very common rock types, and therefore it can be difficult to trace them back to the their place of origin. These are in Danish called vandreblokke (wandering rocks).

Origin of the glacial erratics?

The many glaciers brought rocks and blocks from Norway, Sweden, and the Baltic Sea Region. Some of the rocks are so special that we can can place their precise fell of origin. In Danish these are called ‘ledeblokke’.

Nature rapport about rocks (in Danish)

Do you want to know more about ice age rocks in Nationalpark Mols Bjerge, then take a look in the nature rapport 10/2015 (in Danish).

Share your ice age experience

A big thank you to…

A big thank you to Nationalpark Mols Bjerge and Jens Reddersen for their nature rapport ‘De kæmpestore kampesten og deres rejse’, which is a mapping and dissemination of the big ice-transported rocks in Nationalpark Mols Bjerge.

We have had great pleasure in both facts and pictures.