List of lochs of Scotland

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This list of lochs in Scotland includes the majority of bodies of standing freshwater named as lochs but only a small selection of the generally smaller, and very numerous, lochans. This list does not currently include the reservoirs of Scotland except where these are modifications of pre-existing lochs and retain the name "loch" or "lochan".

It has been estimated that there are at least 31,460 freshwater lochs (including lochans) in Scotland, and more than 7,500 in the Western Isles alone.[1] Whilst lochs are widespread throughout the country, they are most numerous within the Scottish Highlands and in particular in the former counties of Caithness, Sutherland and Ross and Cromarty. The majority of the larger lochs are linear in form; their distribution through the West Highlands reflects their origin in the glacial overdeepening of the straths and glens they now occupy.

Loch is a Scottish Gaelic word for a lake or fjord (cognate with the Irish Gaelic loch, which is anglicised as lough and with the older Welsh word for a lake, llwch) that has been borrowed by Scots and Scottish English to apply to such bodies of water, especially those in Scotland. Whilst "loch" or "lochan" is by far the most widespread name for bodies of standing water in Scotland, a number of other terms exist. The Lake of Menteith is the only natural body of freshwater called a "lake" in Scotland, (although it is also known as Loch Innis Mo Cholmaig in Gaelic) and there are one or two other man-made "lakes", the Lake of the Hirsel being an example. Numerous lochs are called "water", particularly in the Northern Isles, e.g. Roer Water in Shetland and Heldale Water in Orkney. These are not to be confused with similarly named rivers, particularly in the south of Scotland, e.g. Yarrow Water and Blackadder Water.

Largest and deepest lochs

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Loch Awe

This table includes the twelve largest lochs by volume, area and length as listed by Murray and Pullar (1910).[2][3] The volume of water in Loch Ness is nearly double that in all the lakes of England and Wales combined.[1] Murray and Pullar also note that the mean depth of Loch Ness is 57.4% of the maximum depth – higher than in any other large deep loch, with Loch Avich coming closest at 52.4%.[4]Lochs Maree, Shiel and Ness are recorded as being the narrowest of the large lochs in relation to their length.[5]

LochVolume
(km3)
Volume
(mi3)
Area
(km2)
Area
(mi2)
Length
(km)
Length
(mi)
Max. depth
(m)
Max. depth
(ft)
Mean depth
(m)
Mean depth
(ft)[6]
Loch Ness7.451.79562236.222.5227745132433[4]
Loch Lomond2.60.627127362219062037121[7]
Loch Morar2.30.5526.710.318.811.73101,02087285[8]
Loch Tay1.60.3826.410.2231415049060.6199[9]
Loch Awe1.20.29391541259430832105[10]
Loch Maree1.090.2628.611.0201211437438125[5]
Loch Ericht1.080.2618.67.2231415651257.6189[9]
Loch Lochy1.070.26166.2169.916253170230[11]
Loch Rannoch0.970.23197.315.79.813444051167[12]
Loch Shiel0.790.1919.57.5281712842040130[13]
Loch Katrine0.770.1812.44.812.98.015149543.4142[14]
Loch Arkaig0.750.18166.219.312.010935846.5153[15]
Loch Shin0.350.08422.58.727.817.34916115.551[16]

Neither the Loch of Stenness nor the Loch of Harray on Mainland Orkney is large enough to appear in the above table (Loch of Harray is 16th by area) but at higher stages of the tide they are connected to one another and to the marine waters of Hoy Sound. The former is the largest brackish lagoon in the UK[17] and the latter, whilst predominantly freshwater, does have a transition zone in the vicinity of the Bridge of Brodgar where the two are connected.[18] The two lochs together cover an area of 19.3 km2 (7.5 sq mi)[18] but have a volume of only 0.047 km3 (0.011 cu mi) as they are so shallow; Loch of Stenness has a maximum depth of 5.2 metres (17 ft). Although flow between the two lochs and the sea can be observed, the water levels only change slightly with the movements of the tide.[19]

Mainland

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In reaching an alphabetically arranged list, the words "loch" and "lochan" have been ignored as have articles and prepositions in both Gaelic (a', an, an t-, na, na h-, nam, nan etc.) and English (of, the etc.). Those that have been converted to reservoirs for water supply or in association with hydroelectric projects and whose levels have been artificially raised by the construction of dams or barrages are annotated as reservoir.

Loch Gamhna

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Lochs on islands

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There are a very large number of lochs on the islands of Scotland, with the greatest density occurring in the Outer Hebrides. North and South Uist and Lewis in particular have landscapes with a high percentage of freshwater and a maze and complexity of loch shapes. Harris has fewer large bodies of water but innumerable small lochans.

Larger

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Those listed in this section are confined to the larger or otherwise notable lochs.

Loch Orasaigh in Lewis is only about 125 hectares (310 acres) in extent but the island of Rainish Eilean Mòr is probably the largest island in Scotland relative to the size of the body of water it sits in, as it takes up about 20% of the loch's surface area.

The meanings of the names are generally derived from Gaelic, Old Norse or Scots.

LochMeaning of nameIslandOS Grid ref.Area (ha)Area (acre)Depth (m)Depth (ft)Notes[20]
Loch a' PhuillGaelic: Loch of the bog or pool[21]TireeNL955415Located in the south west near Balephuil.
Loch AscogNorse: Loch of ash bay[21]ButeNS09462644.7110Located south of Rothesay.[22]
Loch BàMullNM56937632480044144[23]
Loch BarabhatGreat BerneraNB156353
Loch BìSouth UistNF7664381033South Uist's largest loch is in the north of the island and at 8 kilometres (5.0 mi) long it all but cuts the island in two.
Loch of BoardhouseMainland OrkneyHY268264244600516[24]In Birsay parish
Loch CarabhatGrimsayNF857566
Loch CarabhatNorth UistNF84661315137022.574North Uist's third largest loch[25]
Loch of CliffUnstHP6001171042606.5215 kilometres (3.1 mi) long and the most northerly loch in Britain.[26]
Loch CoruiskGaelic: Loch of the corrie of waterSkyeNG48220638.4126[27][28]Located in the heart of the Black Cuillin mountains on Skye.
Loch DruidibeagSouth UistNF7913745001,200[29]Part of the Loch Druidibeg National Nature Reserve on the west coast of South Uist.
Loch FadGaelic: Long lochButeNS0746167118011.538[30]Stocked with Brown and Rainbow Trout the loch is an SSSI.[31]
Loch FadaColonsayNR385955Colonsay's largest loch
Loch Fada GobhaLewisNB2452321253101446This loch, which lies between Lochs Treabhal and Langavat, is 3 kilometres (1.9 mi) long.[32]
Loch FinlagganLoch of the white hollow[33]IslayNR387679Eilean Mor was an administration centre of the Lordship of the Isles during the 13th—15th centuries. The English name is derived from Gaelic, but the Gaelic name itself is Port an Eilein and means "island port".[33]
Loch FrisaMullNM4904804301,10062.5205Mull's largest loch[34]
Loch of GirlstaMainland ShetlandHU4335192066
Loch GormBlue lochIslayNR229657Contains Loch Gorm Castle, once a stronghold of Clan Macdonald.
Loch of HarrayNorse: Loch of the moundMainland OrkneyHY2951519712,400413[35]Closely linked to the Heart of Neolithic Orkney World Heritage site.
Heldale WaterHoyND259924One of the largest bodies of freshwater in Orkney not on the Mainland
Loch LangavatGaelic/Norse: Long lake[36][37]LewisNB197205906.52,2403098[38]This loch lies at 33 metres (108 ft) above sea level, is over 11 kilometres (6.8 mi) long and is at the head of the Grimersta system.
Loch LangavatGaelic/Norse: Long lakeHarrisNG044897
Loch LeathanGaelic: Broad LochSkyeNG500507This loch to the east of Portree, which includes Loch Fada, is about 5 kilometres (3.1 mi) long.
Loch MealtSkyeNG507656Located south of Ellishadder, on the eastern side of the Trotternish peninsula
Loch MòrGaelic: Big lochBorerayNF850813A shallow loch that make up about an eighth of the area of the island
Muckle WaterScots: Big lakeRousayHY393901One of the largest bodies of freshwater in Orkney not on the Mainland
Loch nan CinneachanGaelic: Loch of the "heathen" or "gentiles".[39]CollNM187562Contains the crannog Dùn Anlaimh
Loch OlabhatBenbeculaNF798509One of Benbecula's larger lochs, it contains numerous islands.
Loch OrasaighGaelic: Tidal island loch?LewisNB388281Contains Rainish Eilean Mòr (see above).
Loch Righ MòrGaelic: Great loch of the kingJuraNR540852
Loch SgadabhaghNorse: Possibly Loch of tax bayNorth UistNF8476854531,1201549[40]According to Murray and Pullar (1910) "there is probably no other loch in Britain which approaches Loch Scadavay in irregularity and complexity of outline."[40]
Loch an SgoltaireColonsayNR386972
Loch of SpiggieShetlandHU3701658621012.541[41]Part of an RSPB Nature reserve, the surface is only just over a metre above sea level.
Loch of StennessNorse: Loch of the headland of the stoneMainland OrkneyHY2801266471,600516[42]The largest brackish lagoon in the UK,[17] the Stones of Stenness are on the south east shore.
Loch of St TredwellLoch of St TredwellPapa WestrayHY4925081033Named after St Triduana, the loch's waters were traditionally believed to be medicinal.[43]
Loch SuaineabhalLoch of Sweyn's FellLewisNB069297226560[44]66.7219This glaciated loch basin has a mean depth of 33 metres (108 ft) and is the most voluminous on Lewis.[45] The loch may be the deepest on any offshore island in the British Isles.
Loch of SwannayOrkneyHY309283244600516Located in the north west of Mainland Orkney there are numerous stony shoals in the loch.[24]
Loch of TankernessNorse: Possibly Loch of Tannskári's point.[46]Mainland OrkneyHY5140926015026 ft 7 inNorth east of Kirkwall, the loch's mean depth is only 1.4 metres (4.6 ft).[47]
Loch TannaArranNR921430Arran's largest loch is 321 metres above sea level.
Loch of TingwallNorse: Loch of the field of the parliamentMainland ShetlandHU416425431101239[48]West of Lerwick
Loch TrealabhalLewisNB27723615739010.534[49]Another shallow Hebridean loch with a complex shape.
Loch of WatleeNorse:UnstHP592054

Smaller

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Less substantial lochs include the following.

Loch Leathan, Skye

Historic lochs

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See also

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References

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  • Beveridge, Erskine (1903). Coll and Tiree. Edinburgh: T. and A. Constable.
  • Murray, Sir John and Pullar, Laurence (1910) Bathymetrical Survey of the Fresh-Water Lochs of Scotland, 1897–1909. London; Challenger Office.

Notes

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