Detmold District

Rahden

Great Stone of Tonnenheide

North Rhine-Westphalia

Detmold District

Kreis Minden-Lübbecke

Rahden

Great Stone of Tonnenheide

Highlight • Natural Monument

Great Stone of Tonnenheide

Cycling

4.8

(215)

Hiking

5.0

(10)

Road cycling

5.0

(2)

Gravel riding

(1)

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Location: Rahden, Kreis Minden-Lübbecke, Detmold District, North Rhine-Westphalia, Germany

Tips

August 22, 2021

Cycling

Always a beautiful place to take a break. It's amazing that the stone was transported here by a glacier.

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günnilu

July 21, 2019

Cycling

The "Great Stone of Tonnenheide" is 10 meters long, 7 meters wide, and 3 meters high. It weighs approximately 350 tons. It is the largest known erratic boulder in Northern Germany.
The stone material of this boulder is approximately one billion years old. It is composed of biotite granite. The block most likely originates from the southern Swedish province of Blekinge, an area approximately 750 km from the current site. Around the turn of the century, geologist Professor Dr. Wegener examined the boulder and determined its dimensions to be 7 meters long and 5 meters wide.

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Danny aus SHG

April 23, 2018

Hiking

The "Großer Stein von Tonnenheide" is 10 meters long, 7 meters wide and 3 meters high. Its weight is about 350 tons. He is the largest known foundling in Northern Germany. Age, origin and type of this witness of the Ice Age are described by the geologist dr. Alfred Hendricks, Münster. An excerpt from the report and additional statements of the association can be found below.

The boulders that still exist today represent a selection due to weathering, economic exploitation and destruction. The rocks have been widely used for construction, paving stones and gravel.

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