A Giant’s Kettle in the Middle of Lanark County


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Somewhere along Sheridan Rapid’s Road is something known locally as Grinding Rock or Jacob’s Well.  Potholes (also called Rockmills or Giant’s Kettles) are round depressions in solid rock ranging from very small to many feet in diameter and depth. Jacob’s Well is actually a deep hollowed rock on the right hand side of the road between the 3rd and 2nd concessions of Dalhousie.


Legends has it that it the geological formation called a kettle was used by the  Algonquin First Nations for grinding corn. The native population was still present in this area when European settlers began to arrive, and the number of artifacts found in this area indicates that there was certainly a native presence here. Archaeological research has proven that potholes were indeed used by ancient peoples.

In the days when the Mississippi River was larger, a piece of hard granite traveling over softer stone would have caught the eddies and whirlpools grinding away the softer rock forming a kettle. Sheridan Rapids was also a camping place for the natives travelling along the Mississippi.

Sheridan Rapids used to be a bustling community with a Catholic Church, cheese factory lime kiln tinsmith and iron mine. Given the fact that the hole is hewn from solid bedrock, it is very unlikely that it was created by hand by the Algonquin First Nations. Similar holes have been found in riverbeds at the foot of cascades, and under some other circumstances.

PLEASE NOTE- New Lanark Highlands History caches were placed in rural areas using an iPhone; coordinates have been checked many times but if you encounter a problem, please let us know by personal message and we will attend to it right away. Useful hints have been provided if you need help!

Additional Hints (Decrypt)

Prqnef orfvqr gur cbgubyr, rlr yriry

Decryption Key


(letter above equals below, and vice versa)


The Preaching Rock of Lanark County


In the northern Great Plains of North America, wetlands formed in glacial kettles are known as prairie potholes.

Photo credit-Mike Szabo

they have kettles upstream @ ragged chutes as well!

About lindaseccaspina

Linda Knight Seccaspina was born in Cowansville, Quebec about the same time as the wheel was invented and the first time she realized she could tell a tale was when she got caught passing her smutty stories around in Grade 7 at CHS by Mrs. Blinn. When Derek "Wheels" Wheeler from Degrassi Jr. High died in 2010, Linda wrote her own obituary. Some people said she should think about a career in writing obituaries. Before she laid her fingers to a keyboard, Linda owned the eclectic store Flash Cadilac and Savannah Devilles in Ottawa from 1976-1996. After writing for years about things that she cared about or pissed her off she finally found her calling. Is it sex drugs and rock n' roll you might ask? No, it is history. Seeing that her very first boyfriend in Grade 5 (who she won a Twist contest with in the 60s) is the head of the Brome Misissiquoi Historical Society and also specializes in local history back in Quebec, she finds that quite funny. She writes every single day and is also a columnist for Hometown News and Screamin's Mamas. She is a volunteer for the Carleton Place and Beckwith Heritage Museum, an admin for the Lanark County Genealogical Society Facebook page, and a local guest speaker. She has been now labelled an historian by the locals which in her mind is wrong. You see she will never be like the iconic local Lanark County historian Howard Morton Brown, nor like famed local writer Mary Cook. She proudly calls herself The National Enquirer Historical writer of Lanark County, and that she can live with. Linda has been called the most stubborn woman in Lanark County, and has requested her ashes to be distributed in any Casino parking lot as close to any Wheel of Fortune machine as you can get. But since she wrote her obituary, most people assume she's already dead. Linda has published six books, "Menopausal Woman From the Corn," "Cowansville High Misremembered," "Naked Yoga, Twinkies and Celebrities," "Cancer Calls Collect," "The Tilted Kilt-Vintage Whispers of Carleton Place," and "Flashbacks of Little Miss Flash Cadilac." All are available at Amazon in paperback and Kindle. Linda's books are for sale on Amazon or at Wisteria · 62 Bridge Street · Carleton Place, Ottawa, Canada, and at the Carleton Place and Beckwith Heritage Museum · 267 Edmund Street · Carleton Place, Ottawa, Canada--Appleton Museum-Mississippi Textile Mill and Mill Street Books and Heritage House Museum and The Artists Loft in Smith Falls.

2 responses »

  1. At Kettle Point, north of Sarnia on Lake Huron, kettles are actual round rocks. No point to make, just spreading information. 🙂

    I am pleased to learn of this kind of kettle.


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