Floutern Tarn

Type; Natural
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Location; Greta Borne, Ennerdale
Accessibility; Access Land
Grid Ref; NY 125 170
Elevation; 377m (1239 feet)
Size; 378m x 55m (1228 x 200 feet)
Area; 1.35 hectares (3.3 acres)
Depth; 4 m (13 feet)
Meaning of name; possible old Norse "floi", a watery moss, and "tjorn", which renders the second Tarn somewhat superfluous - The Tarn in the Watery Moss
Alternative name(s);  

Floutern Tarn lies under Floutern Crag on the north side of Great Borne, a short distance north of Ennerdale Water, in a small, narrow, hanging valley. Its outfall, to the east, tumbles down a narrow cleft in a series of small falls.

There are the remains of a small mine near the outfall, started in 1871 for the purpose of extracting iron. Originally planned to include a railway to meet a branch line near Cogra Moss, using a stationary engine at Floutern Tarn to raise the waggons, the Red Gill Mine venture proved too expensive and it failed after only six years.