Ice age landscape in Northern Jutland

Northern Jutland has through the ice ages been very influenced by the movements of the ice, and in the Interglacial periods Vendsyssel has been covered by the ocean, where only the highest points were visible as islands. You can still see these traces of the ice age, and sense the massive powers of the ice by visiting the locations and at the same time you get a beautiful and exciting nature experience. Use latitude (B) and longitude (L) to find the locations – you can put them into e.g. Google Maps.

Lodbjergkystklint

Near the coast a bit south to Lodbjerg Fyr  you will find ‘sorte næse’ (black nose) as the place is called by the locals. The ice has pushed the bottom black layer of 25 million year old black mica up into the upper layer of boulder clay and sand.

B: 56.823489° L: 8.263373°

Atterhøj by Nors Sø

Atterhøj is located near one of the cleanest lakes in Denmark, the karst-lake Nors Sø. Atterhøj is a part of the old stone age sea short that clearly can be seen along the southern shore of the lake and on the north side near Isbjerg.

B: 57.028011° L: 8.593006° (Parking lot on the south side)

B: 57.040877° L: 8.616212° (Parking lot by Isbjerg)

Mulbjergene by Lille Vildmose

Mulbjergene between Lille Vildmose and Kattegatkysten are typical moraine hills. They were formed during the last ice age and they laid as islands off the stone age sea shore. Today, they form the coastline of the bog-area that lies behind them.

B: 56.909581° L: 10.260688°

Sebbersund and Skt. Nikolaj Bjerg

Skt. Nikolaj Bjerg by Sebbersund is a moraine hill formed during the last ice age. Originally it was an island in Limfjorden. Today, the mountain is located on the narrow sandy beach, this is due to land uplifts and erosion (wear of the surface of the earth by heat, cold, rain, water, ice or wind, which causes dissolution or crumbling of soil layers or rocks and removes the released material).

B: 56.957497° L: 9.564287°

Uhrehøje

Tandrup lake is a kettle hole in Uhrehøje Plantage. When the ice pulled back, big blocks of ice broke off, these were then covered by melt water sediments. Here the ice blocks laid frozen for a long period of time, before the rise in temperature was able to melt them and the kettle holes was left as lakes.

B: 56.797450° L: 9.259185° (P-plads)

Louns

The landscape on the Louns-peninsula was formed during the last ice age, where the ice deposited big soft hills and where the melt water formed big erosion valleys.

B: 56.681988° L: 9.178235° (P-plads)

Næsby valley

Næsby valley is a V-shaped erosion valley, where the running water since the ice age has cut itself into the elevated moraine landscape on its way to the ocean.

B: 56.911679° L: 9.180500° (Parking lot)

B: 56.911624° L: 9.175639° (Erosion valley)

Gravlev Ådal

As the ice melted after the last ice age, the ocean rose and moved far up into Gravlev Ådal, which then became a part of Limfjorden. Since then, the shore elevated itself, and the water pulled back but left the stream and a lake at approximately 65 hectare in the middle of the stream-valley.

B: 56.834721° L: 9.825346°

Poulstrup Sø

The hilly landscape near Poulstrup Sø was formed during the last ice age more than 10,000 years ago. The lake is a classical kettle hole. Today, the water is only a couple of meters deep because the lake bed is covered by a thick layer of silt, but the actual lake bed lies 18 meters below the water surface.

B: 56.975874° L: 9.928658°

Ravnkilde

Ravnkilden is a swamp-source with a number of small springs, which quickly assemble into a fast flowing stream, which provides 85 litres per second. The spring is, together with other spring near Rebild Bakker, known for some rare insects (e.g. caddisflies), which was widely distributed just after the last ice age. The spring water is constantly at 7-8 degrees all year, and this made it possible for the caddisflies to survive the climate changes after the ice age. Today, in Denmark, they only exits near these springs, like a sort of ice age remnant; otherwise they live far north in the Scandinavian mountains.

B: 56.832913° L: 9.828378°

Rubjerg Knude

Rubjerg Knude is formed by big glacier thrusts during the last ice age. About 28,000 years ago the ice came from north and pushed clay and sand flakes up into approximately 40 meters height. Later (between 25,000-19,000 years ago) the area was once again covered in ice that came from east. This caused gravel and pebbles to be deposited on top of the clay.

B: 57.448910° L: 9.774361°

Rebild Bakker

Rebild Bakker is so called fake hills formed by erosion clefts. The erosion clefts are formed by melt water that cut itself into the vegetation empty landscape just after the ice melted 8-10,000 years ago.

B: 56.831895° L: 9.843068°

Nymøllevej, the nortern part of Jyske Aas

Jyske Ås is, despite the name, not a kame, but a lateral moraine pushed up by the ice. The steep slopes by Nymøllevej that the ice and melt water has formed approximately 18,000-20,000 years ago, has a very varied flora today.

From the parking lot at Nymøllvej you can towards north look down over the gorges, if you look towards south you can see Dronninglund Storskov, and towards east is the flat landscape that the ice has left.

B: 57.303471° L: 10.231460°

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A big thank you to…

A big thank you to Det Nordjyske Naturvejledernetværk that among others things have provided pictures of the ice age landscape in Northern Jutland.