Linn (geology)

In Scotland and northern England a Linn is a geographical water feature, a watercourse that has cut through a shelf of hard rock creating a narrow (usually), steep-sided crevice (fracture) though which it runs.
Typically one named after a river or area can have application even for more than one such feature.
The photograph of the Linn of Dee illustrates the attributes of a typical 'Linn'.
In "Gordon (1925)" the author describing a walk down "Glen Avon" in the Cairngorms mentions two "Linns" on the "River Avon" - first:
Second:
A linn may also refer to a waterfall or a pool at the foot of a waterfall, with the derivation a confusion of Scots Gaelic "linne" (pool) and Old English (torrent).
References.
"Gazetteer for Scotland" "Glossary:L". Retrieved 2 January 2008.
England's Rock Art - Roughting Linn, Northumberland
Notes: 