River Terrig

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Terrig
The Terrig near Leeswood Old Hall.
From Welsh terydd, "swift", or terig, "violent, harsh"
Afon Terrig (Welsh)
Wales
Denbighshire, Flintshire
Llyn Cyfynwy, near Graianrhyd, Denbighshire
.mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .geo-multi-punct,.mw-parser-output .geo-inline-hidden{display:none}.mw-parser-output .longitude,.mw-parser-output .latitude{white-space:nowrap}53°4′58.28″N 3°10′13.49″W / 53.0828556°N 3.1704139°W / 53.0828556; -3.1704139
370 m (1,210 ft)
confluence with River Alyn, Flintshire
53°8′56.929″N 3°6′1.595″W / 53.14914694°N 3.10044306°W / 53.14914694; -3.10044306
95 m (312 ft)

The River Terrig (Welsh: Afon Terrig) is a small river in north-east Wales.

The river rises at Llyn Cyfynwy near Graianrhyd village in the community of Llanarmon-yn-Ial, Denbighshire, about three miles from the source of the River Alyn. It then flows northwards and eastwards, forming the boundary between the old parishes of Nercwys and Treuddyn. At Nant-y-Mynydd it is joined by several small springs from Mynydd Ddu, and finally itself joins the River Alyn at Pontblyddyn, Flintshire.

The Terrig is a habitat for brown trout. Its name is derived from its rapid flow after times of heavy rain; Thomas Pennant, in his Tours in Wales, described it as "the Terrig, or the violent, [...] often of a tremendous swell and fury".

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