earth science

Hill of Allen

Hill of Allen is a earth 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 Hill of Allen rather than just read about it. In short: The Hill of Allen (Cnoc Alúine in Modern Irish, earlier Cnoc Almaine; also Hill of Almu ) is a volcanic hill situated in the west of County Kildare, Ireland, beside the village of Allen. According to Irish Mythology, it was the seat of the hunter-warrior Fionn mac Cumhaill and the Fianna.

Key takeaways

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

Reference excerpt

The Hill of Allen (Cnoc Alúine in Modern Irish, earlier Cnoc Almaine; also Hill of Almu ) is a volcanic hill situated in the west of County Kildare, Ireland, beside the village of Allen. According to Irish Mythology, it was the seat of the hunter-warrior Fionn mac Cumhaill and the Fianna. The site is currently part-owned by Roadstone Dublin Limited and extensive quarrying has noticeably changed the profile of the hill.

History The hill is situated at the easternmost point of the Bog of Allen and it is from this hill that the bog gets its name. According to legend, Fionn mac Cumhaill had a fortress on the hill and used the surrounding flatlands as training grounds for his warriors. In 722 A.D. the Battle of Allen was fought between the Leinstermen (Laigin), led by Murchad mac Brain Mut (King of Leinster), and the forces of Fergal mac Máele Dúin (High King of Ireland) near to the hill.

Tower In 1859 Sir Gerard George Aylmer, the 9th Baronet of Donadea began building a circular tower on the top of the hill, which was completed in 1863. The tower was a folly and the names of the workmen are inscribed on the steps. During the construction of the tower a large coffin containing human bones was unearthed which were said to be those of Fionn mac Cumhaill. These were re-interred under the site.

Quarry As of 2008 most of the site is under the ownership of Roadstone Dublin Limited and much of the western side of the hill has been quarried. An agreement between Roadstone Dublin Limited and Kildare County Council allows quarrying to be carried out (subject to conditions) for a period of 50 years from 15 October 2008

See also Dún Ailinne List of mountains in Ireland

References and notes

External links Hill of Allen Action Group

Illustrations

Worked examples

Example 1 — a first encounter with Hill of Allen

Start with the simplest possible case. Write down what Hill of Allen claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In earth 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 Hill of Allen 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 Hill of Allen 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 Hill of Allen

In research: Hill of Allen appears in earth 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 Hill of Allen 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: Hill of Allen is common in secondary-school and first-year university syllabi. It links to neighbouring topics Archaeological sites in County Kildare, Extinct volcanism, Mountains and hills of County Kildare, so understanding it makes those chapters shorter.
In everyday life: Look for Hill of Allen 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 Hill of Allen in 20 minutes

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

Frequently asked questions

What is Hill of Allen in simple terms?

Why does Hill of Allen matter?

Because it connects several earth 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 Hill of Allen?

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 Hill of Allen.