Afon Ogwen

Afon Ogwen
River
The Afon Ogwen above Bethesda
Country Wales
Region Gwynedd
Source Llyn Ogwen

The Afon Ogwen (Welsh, meaning River Ogwen in English) is a river in north-west Wales draining from some of the greatest peaks in Snowdonia before discharging to the sea on the eastern side of Bangor, Gwynedd.

Etymology

Although the spoken form in the local North Wales dialect is Ogwan (with an A), and it has also recently been shown that Ogwan is an original form of the name, the form Ogwen is believed to have been mistakenly adopted as a kind of back-formation, because many words ending in -en become -an in the north Wales dialect.

The name of the river is recorded as Oguanw (with the U doing duty for modern F) in a poem in the Hendregadredd Manuscript. The name is probably a compound word: og + banw (piglet) = ogfanw. The precise meaning of og is less clear, but it may either be cognate with the Irish Tír na n-Óg (land of youth) or else derive from the Proto-Indo-European *oku ("soon, fast").

Sources

The main source of the Ogwen is in Llyn Ogwen, which is situated alongside the A5 road as it starts to descend through Snowdonia. However, the true source of the river lies in the three streams draining into Llyn Ogwen. These are Nant Gwern y Gof, Afon Denau, and Afon Lloer which itself has its source in the upland lake, Ffynnon Lloer.

Waterfalls

The Ogwen emerging at the western end of Llyn Ogwen immediately descends cataracts and waterfalls, known as Ogwen Falls in English and Rhaeadr Ogwen in Welsh, before continuing in a north-north-westerly direction down the glaciated Nant Ffrancon valley.

Re-Engineered

In the 1950s and 1960s, this stretch of the river was re-engineered to try to help drain the adjoining farmland. However, the beneficial effects were not significant and the ecological damage was great. In the 1990s, the Environment Agency, working with partners including the Countryside Council for Wales and farming groups, re-engineered the river to recreate pools and riffles with the intention of allowing the river to re-gain its original form and diversity of wildlife.[1]

As the river continues northwards, it passes close to the great waste tips of slate produced by the Penrhyn slate quarry and then past a caravan site where the remains of a long abandoned watermill and mill pond still exist. Passing Braichmelyn village on its eastern bank, it is joined by the substantial tributary, the Afon Caseg, which drains a large area of the Carneddau mountains. The course turns slightly more westwards as the river passes through Bethesda and becomes progressively more wooded and more deeply cut providing some white water conditions enjoyed by canoeists.

The widening river then follows an abandoned railway line (now the Lon Las Ogwen cycle path) through a woodland valley crossing under the main north Wales coast line and the A55 before discharging to the Menai Strait at Aberogwen, near Bangor.

Tributaries

Right
Left

References

  1. ↑ Manual of River Restoration Techniques, 5.3 Restoring and stabilising over-deepened river bed levels River Ogwen and Nant Ffrancon

External links

Coordinates: 53°14′N 4°05′W / 53.233°N 4.083°W / 53.233; -4.083

This article is issued from Wikipedia - version of the 10/5/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.