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Wedgwood Rock

Wedgwood Rock 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 Wedgwood Rock rather than just read about it. In short: Wedgwood Rock is a glacial erratic (known to geologists as the Wedgwood Erratic) near the neighborhood of Wedgwood in Seattle, Washington. Its mineral composition matches that of Mount Erie, on Fidalgo Island in Skagit County, Washington, 55 mi (89 km) north.

Wedgwood Rock — main illustration
Wedgwood Rock — illustration

Key takeaways

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

Reference excerpt

Wedgwood Rock is a glacial erratic (known to geologists as the Wedgwood Erratic) near the neighborhood of Wedgwood in Seattle, Washington. Its mineral composition matches that of Mount Erie, on Fidalgo Island in Skagit County, Washington, 55 mi (89 km) north. Prior to the establishment of the Wedgwood neighborhood, the erratic was known first as Lone Rock and later simply as Big Rock. Transported to its site by the Puget Lobe of the Cordilleran Ice Sheet during the Vashon Glaciation more than 14,000 years ago, it was a landmark for Native Americans in what was once a dense forest. Today, the rock sits in a residential neighborhood on 28th Avenue NE, near NE 72nd Street, still surrounded by trees and brush, and kept clear by local residents.

19th century In 1881, the rock, known at the time as Lone Rock, was part of the 160-acre (65 ha) farm of William Weedin. An anonymous 1881 letter to the Seattle Daily Intelligencer about a Fourth of July picnic at the rock described it as "in a dense forest" on Weedin's land, and as "a single rock 80 feet (24 m) in circumference and 19 feet (5.8 m) in height, rather oval-shaped, covered with a solid network of moss and interspersed with liquorice, with its graceful fern-shaped foliage hanging in festoons around it." This rock has an estimated mass of 700 metric tons (690 long tons; 770 short tons). In 1888 the Weedin property passed to Mary Miller, widow of William Miller. William Miller, an ally of Territorial Governor Isaac Stevens, fought in the Puget Sound War and Yakima War of 1856–1857.

20th century and later By the early 20th century, the rock was known as Big Rock. With the Miller family's permission, members of Seattle's Mountaineers Club practiced their rock climbing techniques there. Edmond S. Meany, president of Mountaineers and a professor at the nearby University of Washington brought his students to the rock to learn about glacial movement and land forms. Later, Boy Scouts also learned to climb there, taught by German-born climber and scout leader Wolf Bauer. REI founder Lloyd Anderson taught Mountaineers and Boy Scouts at the rock. Among the prominent climbers whose training started at Big Rock were German-born Fred Beckey and Jim Whittaker, who became the first American to reach the top of Mount Everest. Mary Miller's son Winlock Miller, a member of the U.W. Board of Regents and a promoter of Mount Rainier National Park, kept the land around the rock undeveloped into the 1940s. He sold in the 1940s to developer Albert Balch, who promised Miller that the area immediately around the rock would be preserved as a park, but failed to keep the promise. In 1946, a citizens group tried and failed to convince the Seattle City Council to preserve the area as a park against landowner Balch's wishes. Although surrounded by houses, the rock remained a destination for picnickers, university students, climbers, and, in the 1960s, hippies. In reaction to the hippies and their perceived drug use, the Seattle City Council passed an ordinance in 1970 making it a crime to climb the rock, punishable by a fine up to $100.

See also List of individual rocks

Notes

References Seattle Neighborhoods: Wedgwood -- Thumbnail History on HistoryLink.org; see especially the section "Big Rock". Valarie Bunn, "The Fourth of July, 1881, at the Lone, Big Wedgwood Rock", Wedgwood Echo, Volume 25, Issue IV, July 2010, p. 3, 11. Same article now online on the Wedgwood in Seattle History blog. Valarie Bunn, "Who Dropped the Rock", Wedgwood Echo, Volume 26, Issue VI, October 2011, p. 2.

External links Media related to Wedgwood Rock at Wikimedia Commons

Illustrations

Wedgwood Rock: Wedgwood Rock. The child holds a yardstick (0.9 meter long)
Wedgwood Rock. The child holds a yardstick (0.9 meter long)
Wedgwood Rock: Map of Wedgwood Rock to Mount Erie. The glacial erratic was carried 55 mi (89 km) by the Vashon Glacier 14,000 years ago
Map of Wedgwood Rock to Mount Erie. The glacial erratic was carried 55 mi (89 km) by the Vashon Glacier 14,000 years ago

Worked examples

Example 1 — a first encounter with Wedgwood Rock

Start with the simplest possible case. Write down what Wedgwood Rock 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 Wedgwood Rock 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 Wedgwood Rock 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 Wedgwood Rock

In research
Wedgwood Rock 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 Wedgwood Rock 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
Wedgwood Rock is common in secondary-school and first-year university syllabi. It links to neighbouring topics Climbing areas of Washington (state), Glacial erratics of Washington (state), Individual rocks, so understanding it makes those chapters shorter.
In everyday life
Look for Wedgwood Rock 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 Wedgwood Rock in 20 minutes

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

Frequently asked questions

What is Wedgwood Rock in simple terms?

Wedgwood Rock is a glacial erratic (known to geologists as the Wedgwood Erratic) near the neighborhood of Wedgwood in Seattle, Washington. Its mineral composition matches that of Mount Erie, on Fidalgo Island in Skagit County, Washington, 55 mi (89 km) north.

Why does Wedgwood Rock 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 Wedgwood Rock?

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 Wedgwood Rock.

Tags

  • Climbing areas of Washington (state)
  • Glacial erratics of Washington (state)
  • Individual rocks
  • Rock formations of Seattle
  • Wedgwood, Seattle

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