ANCIENT OTTAWA: Lost Relics From 500BC Found At Constance Bay

An ancient petroform, or formation of stones, was uncovered at Constance Bay in 1970.

An ancient petroform, or formation of stones from 500BC was uncovered at Constance Bay in 1970.

When you think of Ottawa history, you probably think of the early 1800’s, the days when logging was a booming industry and the Rideau canal was being constructed. While most of Ottawa’s history is relegated to only the last 200 years, there is a relatively unknown history to this region that far surpasses that timeline by thousands of years. A history that includes an ancient civilization that flourished along the shores of the Ottawa River. Remnants of their existence are still out there waiting to be found. Objects used by this civilization represent a fascinating and overlooked part of our area’s rich and unexplored history.


Ancient pots have been found just sitting in the crevices of Luskville cliffs, forged copper weapons from 6,000 years ago have been found on an Ottawa River island near Pembroke. Area artifacts slowly being uncovered show a vast ancient trade network with distant regions that seem weirdly unlikely. Exotic materials in these objects show them originating from as far away as the tip of Labrador and the far reaches of a Lake Superior island where an ancient copper mine produced 99% pure copper to a widespread group of ancient civilizations in the Americas.

A 2,000 year old knife found near Ottawa was was made from a type of stone only found in Ohio, USA. Granted, the Ottawa area provides water access to a variety of areas through the Rideau river, the St. Lawrence, the Great Lakes and beyond. Likewise, visitors from those places could have visited the Ottawa area.

One such example of this ancient past is the the accidental discovery of relics from the period of 500BC during the summer of 1969 near Constance Bay. Yes, 500BC…2,500 years ago.


It happened when a cottage was being built on the shores of the Ottawa River, unearthing objects that led to an archeological excavation in 1970. I came across the original archeology report of this ancient find and what it revealed is a unique and compelling history of our area. You can read the entire 1970 archeological report on this extraordinary find here.

The original 1970 archeological sketch of the Constance Bay site.

The original 1970 archeological sketch of the Constance Bay site.

A sample of the items recovered from the 500BC site.

A sample of the items recovered from the site.

The ensuing dig in 1970 produced ceramics, stone tools, fragments of copper, galena, mica and bone, hearth features, and an apparent red-ochre burial site marked by a possible petroform (arranged stone formation). The radiocarbon dating of charcoal found at the site place the site and its relics around 490 B.C. ± 75 , when Middle Woodland tribes were congregating along the waterways of what is now Ontario and Quebec.


Our ancient site is located at the tip of Constance Bay where it meets a small creek, only about 40km west of Ottawa. This area has been linked to other historical artifacts, such as bayonets and cannons from the 17th century along with other post-contact native artifacts. Located a few metres from the sandy beach area of the bay, archeologists in 1970 surveyed and studied the site, noting hundreds of relics that were found in the vicinity of the camp, including shards of marked pottery that were used to recreate how an archaic vessel, over 2500 years old, would have looked.

Pottery fragments from a 2,500 year old vessel found in 1970.

Pottery fragments from a 2,500 year old vessel found in 1970.

Of particular interest, a petrofrom, or an arrangement of stones that denote a special use area, was also uncovered. Speculation that is may have been part of a burial ritual was substantiated by the discovery of mica dust and red ochre, sprinkled over the buried dead and the remains of organic material in the area. This mysterious stone formation and the ancient site has since been subject to development and remains once again lost in time.

An ancient petroform, or formation of stones, was uncovered at Constance Bay in 1970.

An ancient petroform, or formation of stones, was uncovered at Constance Bay in 1970.

I drove out to visit the site and was met by cottages and monster homes that cover the area where the 2,500 year old site would have been. Discovered only 45 years ago, the site seems to be lost once again into the depths of time, without any plaque or indication of the fascinating history that once occurred there.

Do more of these ancient sites exist in the area? Perhaps there are more mysterious stone formations and relics waiting to be found in the woods and shorelines of the Ottawa Valley, secrets to an ancient past that may someday be uncovered in our own backyards.

The ancient site area as it looked in 2013.

The ancient site area as it looked in 2013.


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  1. If you would like to have a plaque or something erected, I would be happy to assist, since it appears I may now be the owner of a good piece of that site!

    I was trying to place the “as it looked in 2013” photo to no avail but I am guessing that this is somewhere near the end of Allbirch Drive…

    Please let me know if you are interested, I am!

    Mark Lilienthal
    243/253 Monty Drive
    Constance Bay…

  2. I remember watching Mr. Watson conducting this dig. He was actually in the process of preparation for an out building at his existing cottage when he first came upon the first artifacts. Thinking back further, I remember an old man, 6 or 7 years earlier, who used to comb the beach for arrowheads, quite successfully.

    1. Wow! Very cool….that is a great piece of history you witnessed. Keep your eyes peeled for anything else that may be hidden under the sands of time.

  3. I found I belive and old pirate blade. It was found in my flower garden. I live in constance bay.

    Where do I find out about it

  4. The explanation of these historical finds are found in ‘The Book of Mormon’ you can download “LDS scriptures” for free and read for yourself. With the dating of those artifacts… the civilisation in question is called the “Jaredites” read in the Book of Mormon in the heading “Ether” to learn about those people. Read the rest of the book to find out the real history of the North American Continent that has been covered up by government and Smithsonian and everyone in between.

  5. There are many of these sites in the Laurentains north of St.Jovite, a group from Mc Gill of which my husband I were part of studied these circle of stones, & stone arrangements. There is also large caves with smoke holes exactly like the caves found in Ireland & Wales! I also like to know why the archeologists are so ready to cover all this up and declare the Indians the first people here!

  6. After talking with various archaeologists, I’ve learned that Canada has some of the worst laws protecting archaeological sites in the world. Only governments have a duty to conduct archaeological review of sites before development. By allowing the destruction of archaeological sites, we are erasing the history of our land.

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