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River Aln
The River Aln near Alnmouth
Location within Northumberland
Location
Country	United Kingdom
County	Northumberland
Towns	Alnham, Whittingham, Alnwick, Lesbury, Alnmouth
Physical characteristics
Source
• location	Alnham
• coordinates	55°23′31″N 2°00′25″W / 55.392°N 2.007°W / 55.392; -2.007
Mouth
• location	Alnmouth
• coordinates	55°23′05″N 1°36′43″W / 55.3848°N 1.6120°W / 55.3848; -1.6120
Length	40 kilometres (25 mi)

v t e River Aln route map
Legend
Castle Pond; Alnham Castle Farm Alnham House Prendwick Little Ryle Ryle Mill Mere Burn Eslington Park Whittingham Whittingham Callaly Burn Whittingham A697, Devil's Causeway, Bridge of Aln, Low Barton Coe Burn (Lower Learchild) Shawdon Burn Bolton Bolton Mill Edlingham Burn Abberwick Ford Abberwick Mill Catcheugh Drive, Hulne Park East Brizlee Drive, Hulne Park Eglingham Burn Shipley Burn Iron Bridge Drive, Hulne Park Weir, Hulne Priory Lady's Well Drive, Hulne Park Weir B6346, Canongate, Alnwick B6341, The Peth, Alnwick Weir Weir B1340, Alnwick Upstream limit of Aln Anglers' Association fishing A1 Alnwick Millennium Footbridge Denwick Burn A1068, "Alnmouth" Road Cawledge Burn Cawledge Viaduct, Aln Valley Railway Stepping Stones, Old Hawkhill Weir Bilton Mill Weir East Coast Main Line Viaduct Lesbury Weir Springs Tidal Limit Lesbury Old Mill Lesbury Millennium Bridge, A1068 Lesbury Old Bridge Normal Tidal Limit, and upper limit of Marine Conservation Zone. Steppey Lane Foot Bridge, Lesbury Duchess' Bridge, B1338, Alnmouth Limit of navigation, downstream limit of Aln Anglers' Association fishing, and upstream limit of public (free) fishing. End of River Aln — North Sea

The River Aln (/ˈæl(ə)n/) runs through the county of Northumberland in England. It rises in Alnham in the Cheviot Hills and discharges into the North Sea at Alnmouth on the east coast of England.

The river gives its name to the town of Alnwick and the villages of Alnmouth and Alnham. For part of its route, directly upstream of Alnwick, the river flows through Hulne Park.

Etymology

The meaning of the name Aln is uncertain, but it is generally seen as a river-name of the Alaunos or Alaunā. Names of this type could derive from the Celtic root *al- ('feed, raise, nurture') or *alǝ- (to wander'), or else from the Brittonic element *al-, "shining, bright" (Welsh alaw, 'waterlilly'). Another suggestion is that the name is derived from the Brittonic root *Alaun- (‘holy one’ or ‘mighty one’).

History

The Aln is first mentioned in the Geography of Ptolemy, a 2nd Century AD Roman cartographer. He refers to it as the River Alaunos or Alaunus (Geographica 2.3.4.18), on which seems to be situated the town of Alauna (Geographica 2.3.7.6). This can speculatively be identified as the Roman fort at Learchild, where the Devil's Causeway crosses the river.

The Aln is a relatively small river but has been important through history as one of the boundaries along which English and Scottish troops marching to war had to cross; for that reason, it was at times heavily defended. For example, the river flows past Learchild Roman Fort and, more significantly, Alnwick Castle which was built for this purpose.

In two battles at Alnwick the river was a significant element: the first in 1093 between Malcolm III of Scotland and Robert de Mowbray; the second in 1174 between William I of Scotland and Ranulf de Glanville.

Adtwifyrdi is the name used by the Venerable Bede to describe the meeting of river and tributary at the mouth of the River Aln.

Non-tidal ecology

The river has a good run of sea trout and salmon, as well as a population of resident brown trout. Public fishing is controlled by the Aln Anglers' Association. The Aln also has a resident population of otters. Grey heron, barn owls, kestrels and buzzards can be observed hunting along the banks of the river.

Tidal ecology

Part of the estuary is designated a Site of Special Scientific Interest, and the river below Lesbury footbridge (the normal tidal limit, except on high springs and in surge events) was made a marine conservation zone in 2013. Large groups of lapwings, oystercatchers and curlews can often be seen. In smaller numbers are mallards, shelducks, grey herons, cormorants, greylag geese, Canada geese, mute swans and the occasional family of goosanders. Less often spotted are barn owls, kestrels, avocets and little egrets. Further down the tidal zone a visitor will often see Sandwich terns and common terns, as well as a variety of gulls and smaller waders including redshanks, greenshanks, turnstones, ringed plovers, pied wagtails, and other sandpipers.

See also

• Rivers of the United Kingdom

References

1. "Bridges On The Aln - Introduction". Bridgesonthetyne.co.uk. Retrieved 18 August 2018.
2. A. L. F. Rivet and Colin Smith, The Place Names Of Roman Britain (London: Batsford, 1979), pp. 243, 245
3. ^ James, Alan. "A Guide to the Place-Name Evidence" (PDF). SPNS - The Brittonic Language in the Old North. Retrieved 25 November 2018.
4. ^ Delamarre, Xavier (2003). Dictionnaire de la langue gauloise: Une approche linguistique du vieux-celtique continental. Errance. p. 37. ISBN 9782877723695.
5. Field, John (1980). Place-names of Great Britain and Ireland. Newton Abbot, Devon: David & Charles. p. 23. ISBN 0389201545. OCLC 6964610.
6. "Fishing - Your Northumberland Guide". Yournorthumberland.co.uk. Retrieved 18 August 2018.
7. "Archived copy" (PDF). Archived from the original (PDF) on 3 December 2013. Retrieved 26 November 2013.{{cite web}}: CS1 maint: archived copy as title (link)
8. "Natural England - SSSIs : Units for Alnmouth Saltmarsh and Dunes". Archived from the original on 3 December 2013. Retrieved 26 November 2013.
9. "Aln Estuary recommended Marine Conservation Zone | the Wildlife Trusts". Archived from the original on 2 December 2013. Retrieved 26 November 2013.

External links

• Biannual water quality data

• Rivers of Northumberland
• Alnwick