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​The Gunter’s Chain

3/16/2020

8 Comments

 
Many property owners, engineers, planners, and developers have probably noticed some commonly odd measurements that often appear when measuring land and may have asked some of the following questions. Why is it common for a street right-of-way to measure 66 feet in width? Why are alleys commonly 16.5 feet wide? Why do we use acres to measure land area?

​The Gunter’s Chain is a device that was first introduced in 1620 and was used to survey not only the British Empire, but also the wilderness and early American settlements. The Gunter’s Chain measures 66 feet in length and consists of 100 links usually marked off into groups of 10 by brass rings or tags. Though this device has become obsolete, it’s use has left an imprint on our nation’s history and how property has been measured and divided. The chain, the link, and the rod have all became statutory units of measurement that were made convenient by the Gunter’s Chain.


​1 chain = 66 feet
1 link = 0.66 feet or 7.92 inches
1 rod = ¼ chain or 16.5 feet
1 furlong = 10 chains or 660 feet
1 mile = 80 chains or 5,280 feet
​1 acre = 10 square chains or 43,560 square feet
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8 Comments
chucky e cheese link
3/8/2021 09:00:31 am

hi

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Kaiser Wegen Jaeger
11/12/2021 12:33:47 am

Good stuff. 👍

Reply
Timothy Cowan
3/16/2023 01:35:45 pm

Greetings. May I use your image of the Gunter's chain as an illustration in our surveying society's journal? If so, to whom do I attribute the image?
Thanks!

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Matt Gard
4/13/2024 05:07:20 pm

Very interesting, I learned surveying from my father, an engineer. He told me about chains as a small guy, but I have only now learned it's history, and it's very satisfying to see the original device. Thank you.

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Matthew link
8/26/2025 11:35:34 am

I have the exact chain and am selling

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ASWINI PARIDA
7/3/2024 08:56:55 am

Land magerment chain

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Mahesh Kumar keer
9/9/2024 09:13:12 pm

Ok

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Andrew Cravello link
1/31/2025 08:59:37 pm

Great defining of a lost land measuring method. Land surveying started in 1997 for me at nearly 38 years old, but the curiosities began at 9. Nevertheless, I grabbed the absolute epiphany of destinies and have never since considered an alternate. To have trudged every terrain, in all weathers, with fellow pioneering map making die-hards is The Best Life, bar none. Now retired, it was a wonderful experience! Thanks for the post!

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