thumb|right|Ekkodalen thumb|right|Ekkodalen seen from the path to Gamleborg. Ekkodalen (Echo Valley) on Bornholm is Denmark's longest rift. It stretches 12 km from Vallensgård Mose through Almindingen, Flæskedal, Kløvedal and Kelseådal to Saltuna on Bornholm's northeast coast.
thumb|right|Ekkodalen thumb|right|Ekkodalen seen from the path to Gamleborg. Ekkodalen (Echo Valley) on Bornholm is Denmark's longest rift. It stretches 12 km from Vallensgård Mose through Almindingen, Flæskedal, Kløvedal and Kelseådal to Saltuna on Bornholm's northeast coast.
==History== Echo Valley was originally named Kodalen (Cow Valley), probably because by the royal edict of 1658 the peasants had obtained rights to free grazing for their cattle there. The first time the name Ekkodalen appears on a map was in 1746 when someone added EC before Kodalen changing it to Eckodalen. Others argue that it was Bornholm's first forester, Hans Rømer, who found the name.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).