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Rävbäck Dam is located north of Gammalkroppa Road, where Rävbäcken flows under the road.
The dam is a 100-metre-long earth dam, with a height of approximately 2.0 metres above the freely flowing water at the outlet.
After the dam, the water was directed into a 775-metre-long canal (Rävbäck Canal?) down to the overshot waterwheel which supplied power to the Gåsgruve field