Article · Wikipedia archive · Last revised Jun 6, 2026

Red Tarn

Red Tarn is a small lake in the eastern region of the English Lake District, in the county of Cumbria. It is high up on the eastern flank of Helvellyn, beneath Striding Edge and Catstye Cam. Red Tarn was formed when the glacier that carved out the eastern side of Helvellyn had melted. The lake along with three others in Lake District is a habitat for the very rare and endangered Schelly fish. Red Tarn was a dam in the nineteenth century that used boulders that raised the water level some eight or nine feet in order to supply power to the Greenside Mine at Glenridding. Today the tarn is a popular rest stop for hikers and nature goers.

Last revised
Jun 6, 2026
Read time
≈ 1 min
Length
263 w
Citations
2
Source
Red Tarn
A small lake sandwich between two mountain ridges
from the Helvellyn summit
Red Tarn
Show map of the Lake District
Red Tarn
Location in Eden, Cumbria
Show map of the former Eden District
LocationLake District, Cumbria
Coordinates54°31′42″N 3°00′31″W / 54.52833°N 3.00861°W / 54.52833; -3.00861
Basin countriesUnited Kingdom
Max. depth25m (82 ft)
Surface elevation
718m (2,356 ft)

Red Tarn is a small lake in the eastern region1 of the English Lake District, in the county of Cumbria. It is high up on the eastern flank of Helvellyn, beneath Striding Edge and Catstye Cam. Red Tarn was formed when the glacier that carved out the eastern side of Helvellyn had melted. The lake along with three others in Lake District is a habitat for the very rare and endangered Schelly fish. Red Tarn was a dam in the nineteenth century that used boulders that raised the water level some eight or nine feet in order to supply power to the Greenside Mine at Glenridding. Today the tarn is a popular rest stop for hikers and nature goers.

Schelly fish2 source ↗
Glacial Tarn Formation source ↗

It lies at an altitude of 718 metres (2,356 feet), with a depth of 25 metres (82 feet).

The tarn is one of two of the same name in the Lake District. A second, much smaller Red Tarn lies between Pike of Blisco and Cold Pike, west of the Langdales.

References

References

  1. "Red Tarn (Helvellyn) - theLakelandFells". Retrieved 30 March 2017.
  2. Maitland, P. S.; Lyle, A. A.; Barnett, I. K. O. (1990). "Status of the schelly, Coregonus lavaretus (L.), in Red Tarn, Cumbria, England". Journal of Natural History. 24 (4): 1067. doi:10.1080/00222939000770641.