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Loch Ness

Loch Ness is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Loch Ness rather than just read about it. In short: Loch Ness (; Scottish Gaelic: Loch Nis [l̪ˠɔx ˈniʃ]) is a large freshwater loch in the Scottish Highlands. It takes its name from the River Ness, which flows from the northern end.

Loch Ness — main illustration
Loch Ness — illustration

Key takeaways

  • Loch Ness belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Loch Ness to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Loch Ness from memory before moving on to harder problems.

Reference excerpt

Loch Ness (; Scottish Gaelic: Loch Nis [l̪ˠɔx ˈniʃ]) is a large freshwater loch in the Scottish Highlands. It takes its name from the River Ness, which flows from the northern end. Loch Ness is best known for claimed sightings of the cryptozoological Loch Ness Monster, also known affectionately as "Nessie" (Scottish Gaelic: Niseag). Loch Ness lies along the Great Glen Fault, which forms a line of weakness in the rocks which has been excavated by glacial erosion, forming the Great Glen and the basins of Loch Lochy, Loch Oich and Loch Ness. These lochs form part of the Caledonian Canal, linking the Moray Firth and the North Sea to Loch Linnhe on the west coast. The northern end of Loch Ness is around 10 km (6 miles) south-west of Inverness, with Fort Augustus located at the other end. The main A82 road between Inverness and Fort William, roughly follows the western shore, passing through the villages of Drumnadrochit and Invermoriston. Loch Ness is one of the largest in Scotland, and the whole of Great Britain. It has the greatest volume, and is the second-deepest and second-largest by surface area.

Geography

Loch Ness is an elongated loch located southwest of Inverness, extending for approximately 37 kilometres (23 miles) and flowing from southwest to northeast. At 56 km2 (22 sq mi), it is the second-largest Scottish loch by surface area after Loch Lomond, but due to its great depth it is the largest by volume in the British Isles, containing more water than all the lakes in England and Wales combined. Its deepest point is 230 metres (126 fathoms; 755 feet), making it the second deepest loch in Scotland after Loch Morar. A 2016 survey claimed to have discovered a crevice extending to a depth of 271 m (889 ft), but further research determined this to be a sonar anomaly. Its surface is 16 metres (52 feet) above sea level, having been raised around 1.2 m (4 ft) during the construction of the Caledonian Canal. The loch is one of a series of interconnected, murky bodies of water in Scotland; its water visibility is exceptionally low due to a high peat content in the surrounding soil. The southern end is fed by the River Oich, which runs from Loch Oich. The northern end flows out through the Bona Narrows into Loch Dochfour; the Bathymetrical survey of the Scottish fresh-water lochs considered Loch Dochfour to be distinct from Loch Ness proper, but capable of being regarded as forming part of Loch Ness. Dochgarroch weir at the downstream end of Loch Dochfour delineates the start of the River Ness, which flows through Inverness to the North Sea via the Moray Firth. Loch Ness forms part of the Caledonian Canal, which comprises 60 miles (100 kilometres) of waterways connecting the east coast of Scotland at Inverness with the west coast at Corpach near Fort William. Only one-third of the entire length is man-made, the rest being formed by Loch Dochfour, Loch Ness, Loch Oich, and Loch Lochy, with the man-made canals running parallel with rivers such as the River Oich. The canal was constructed in the early nineteenth century by Scottish engineer Thomas Telford.

Cherry Island Loch Ness has one small island, Cherry Island (Scottish Gaelic: Eilean Muireach, meaning Murdoch's Island), at the southwestern end of the loch. It is an artificial island, known as a crannog, and was likely constructed during the Iron Age. The island was originally 160 feet (49 m) by 168 feet (51 m) across, but is now smaller as the water level was raised during the construction of the Caledonian Canal in the early nineteenth century. There was formerly a second, natural island nearby named Dog Island (Scottish Gaelic: Eilean Nan Con), but it was submerged when the water level rose. A castle stood on Cherry Island during the 15th century; this was constructed of stone and oak wood and was likely used as a fortified refuge. Rev. Odo Blundell, writing in 1909, suggested that Eilean Muireach may have been a hunting lodge, with Eilean nan Con the home for the hunting dogs.

Villages and places There are nine villages around the loch, as well as Urquhart Castle.

At Drumnadrochit is the "Loch Ness Centre and Exhibition" which examines the natural history and legend of Loch Ness. Boat cruises operate from various locations on the loch shore, giving visitors the chance to look for the "monster". Urquhart Castle is located on the western shore, 2 kilometres (1+1⁄4 miles) east of Drumnadrochit. Lighthouses are located at the northern and southern ends at Lochend (Bona Lighthouse) and Fort Augustus. There is an RNLI lifeboat station on the northern shore near Drumnadrochit, which has been operational since 2008 and was the first non-coastal RNLI station. It is staffed by a volunteer crew and equipped with an inshore lifeboat (ILB).

Etymology Loch Ness takes its name from the River Ness which flows from the loch's northern end. The river's name probably derives from an old Celtic word meaning 'roaring one'. William Mackay in his 1893 book Urquhart and Glenmoriston: Olden times in a highland parish recounts two Scottish legends that have been reported as the source of the name. In the first, a spring in a valley had been enchanted by Daly the Druid for purity, with the admonition that the well opening must be covered by a stone whenever not in use, or else "desolation will overtake the land". One day a woman left the well uncovered when rushing to save her baby from a fire, and it overflowed and filled the vale, forming the loch. The inhabitants cried out "Tha loch 'nis ann, tha loch 'nis ann!" ("There's a loch now, there's a loch now!"), and so it was named "Loch Nis". A second legend, named "The Tales of the Sons of Uisneach" by Mackay and now considered part of the Ulster Cycle of Irish mythology, recounts the Irish woman Deirdre or Dearduil, "the most beautiful woman of her age", who was courted by the king of Ulster, Conachar MacNessa; she fell in love instead with his cousin Noais, son of Uisneach. They fled to Scotland and were married on the banks of the loch, but Noais was slain by MacNessa, and the Loch Naois, River Naois, and Iverness were named after him. Mackay claims that while these legends are not the "true" origin of the name, that many places in the district have names associated with "The Tales of the Sons of Uisneach", and that the same tales have Conachar MacNessa's mother as the river goddess Ness. He argued instead that the etymology of the Celtic "Ness" derived from earlier words for "river".

Monster

… excerpt ends here. Continue reading the full article.

Illustrations

Loch Ness illustration
Loch Ness: Map of Loch Ness
Map of Loch Ness
Loch Ness: Urquhart Bay and Loch Ness viewed from Grant's Tower at Urquhart Castle
Urquhart Bay and Loch Ness viewed from Grant's Tower at Urquhart Castle
Loch Ness illustration
Loch Ness illustration

Worked examples

Example 1 — a first encounter with Loch Ness

Start with the simplest possible case. Write down what Loch Ness claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Loch Ness before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Loch Ness ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Loch Ness

In research
Loch Ness appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Loch Ness in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Loch Ness is common in secondary-school and first-year university syllabi. It links to neighbouring topics Freshwater lochs of Scotland, Loch Ness, Lochs of Highland (council area), so understanding it makes those chapters shorter.
In everyday life
Look for Loch Ness outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Loch Ness in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Loch Ness means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Loch Ness out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Loch Ness in simple terms?

Loch Ness (; Scottish Gaelic: Loch Nis [l̪ˠɔx ˈniʃ]) is a large freshwater loch in the Scottish Highlands. It takes its name from the River Ness, which flows from the northern end.

Why does Loch Ness matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Loch Ness?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Loch Ness.

Tags

  • Freshwater lochs of Scotland
  • Loch Ness
  • Lochs of Highland (council area)
  • Ness basin
  • Oligotrophic lakes

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