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Palliser's Triangle

Palliser's Triangle 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 Palliser's Triangle rather than just read about it. In short: Palliser's Triangle (French: Triangle de Palliser), or the Palliser Triangle, is a semi-arid steppe occupying a substantial portion of the Canadian Prairies, namely southern Alberta and southwestern Saskatchewan, within the Great Plains region. While initially determined to be unsuitable for crops outside of the fertile belt due to arid conditions and dry climate, expansionists questioned this assessment, leading to…

Palliser's Triangle — main illustration
Palliser's Triangle — illustration

Key takeaways

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

Reference excerpt

Palliser's Triangle (French: Triangle de Palliser), or the Palliser Triangle, is a semi-arid steppe occupying a substantial portion of the Canadian Prairies, namely southern Alberta and southwestern Saskatchewan, within the Great Plains region. While initially determined to be unsuitable for crops outside of the fertile belt due to arid conditions and dry climate, expansionists questioned this assessment, leading to homesteading in the Triangle. Agriculture in the region has since suffered from frequent droughts and other such hindrances. The region is named after the Irish/Canadian explorer John Palliser, who described it circa 1880.

History Before Western European interests and settlement expanded to the region, Palliser's Triangle was inhabited by a variety of Indigenous peoples, such as the nêhiyawak ᓀᐦᐃᔭᐘᐠ (Plains Cree), Očhéthi Šakówiŋ (Sioux), and the Niitsítapi (Blackfoot Confederacy). Their lifestyle was centred around the buffalo hunt, as the bountiful herds of buffalo made this a sustainable and effective means of feeding themselves, the meat of which was used to make pemmican. By the mid-1850s, however, the hunt had become an economic venture, their hides and meat sold by Métis and First Nations hunters to the Hudson's Bay Company (HBC), and the increased demand led to a decline in herds. In the middle of the 19th century, a large variety of factors contributed to an increase in Canadian expansionism, and eyes fell upon what would become western Canada for this purpose given that the cold and uncultivatable Canadian Shield was found in the north whereas the expanding United States controlled the south. This American expansionism also drove Canadian expansionism due to the fear that the United States would look north and lay claim to the land before they could. With this said, it became apparent that no sources existed that had a full and reliable assessment of the land. While the HBC had a working knowledge of the land inasmuch as it was useful to their end and business interests, it was insufficient to the needs of the Canadian government. In addition, the HBC was hesitant to share information about the land they controlled for the sake of protecting their monopoly in the region. Even the Royal Geographical Society was uninformed about the North West. All the above drove the United Kingdom and the Dominion of Canada to organize the Palliser and Hind expeditions, respectively, especially since the 1840s discovery that latitude alone did not determine climate, which in turn suggested that good farmland may exist in the region. The area was named after John Palliser, the leader of the aforementioned British Palliser expedition into Western Canada from 1857 to 1859. The expedition had the objective of spending two or three seasons:

… excerpt ends here. Continue reading the full article.

Illustrations

Palliser's Triangle: Map of Palliser's Triangle
Map of Palliser's Triangle

Worked examples

Example 1 — a first encounter with Palliser's Triangle

Start with the simplest possible case. Write down what Palliser's Triangle 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 Palliser's Triangle 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 Palliser's Triangle 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 Palliser's Triangle

In research
Palliser's Triangle 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 Palliser's Triangle 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
Palliser's Triangle is common in secondary-school and first-year university syllabi. It links to neighbouring topics Canadian Prairies, Eponymous diagrams, Geographical regions, so understanding it makes those chapters shorter.
In everyday life
Look for Palliser's Triangle 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 Palliser's Triangle in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Palliser's Triangle 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 Palliser's Triangle out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Palliser's Triangle in simple terms?

Palliser's Triangle (French: Triangle de Palliser), or the Palliser Triangle, is a semi-arid steppe occupying a substantial portion of the Canadian Prairies, namely southern Alberta and southwestern Saskatchewan, within the Great Plains region. While initially determined to be unsuitable for crops…

Why does Palliser's Triangle 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 Palliser's Triangle?

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 Palliser's Triangle.

Tags

  • Canadian Prairies
  • Eponymous diagrams
  • Geographical regions
  • Geography of Alberta
  • Geography of Saskatchewan

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