Hammersø

Hammersø
Hammer Lake, Hammer Sø
Opalsø (right) and Hammersø (left) seen from Hammerknuden
Hammersø
Location	Bornholm, Denmark
Coordinates	55°16′58″N 14°45′54″E
Type	Tarn
Max. length	650 metres (2,130 ft)
Max. width	150 metres (490 ft)
Surface area	10.3 hectares (25 acres)
Max. depth	13 metres (43 ft)

Hammersø (English: Hammer Lake), or Hammer Sø, is the largest lake on the island of Bornholm and the only tarn in Denmark.[1] It is located in a valley in Hammeren, the northernmost point of the island. A narrow isthmus separates the lake from Opalsø, an artificial lake formed in a granite quarry which was closed in 1970.[2]

Geography

The lake is about 650 metres (2,130 ft) long and 150 metres (490 ft) wide, covering an area of 10.3 hectares (25 acres), and reaches a maximum depth of 13 metres (43 ft). Its encatchment area is approximately 133 hectares (330 acres), consisting of about 50% rocks, 25% forest and 25% cultivated land.[1]

Biology

References

1. "Rapport: Hammersøen" (in Danish). Studienet.dk. Retrieved 2012-06-07.
2. "Hammeren" (in Danish). Gyldendal. Retrieved 2012-06-07.