31 March 2026 The Future is the Product of the Past

The Mysterious Prehistoric Underwater Structure Beneath Lake Michigan

A prehistoric structure reminiscent of England’s iconic Stonehenge has been uncovered in Grand Traverse Bay, an arm of Lake Michigan on the western shore of Michigan’s Lower Peninsula.

The findings were found by Dr. Mark Holley, a distinguished professor of underwater archaeology at Northwestern Michigan University.

The picturesque waters of Grand Traverse Bay have long-held maritime history, with dozens of known shipwrecks attesting to the area’s bustling 19th and 20th-century maritime trade routes. Under its serene surface, secrets of a different kind have emerged, capturing the attention of archaeologists and historians.

Archaeologists uncovered sunken boats and cars and even a Civil War-era pier at a depth of around 40 feet into Lake Michigan’s Grand Traverse Bay, using sonar techniques to search for shipwrecks.

When archaeologists were searching for shipwrecks under Lake Michigan, they discovered a rock with a prehistoric carving of a mastodon, as well as a collection of stones arranged in a Stonehenge-like manner.



📣 Our WhatsApp channel is now LIVE! Stay up-to-date with the latest news and updates, just click here to follow us on WhatsApp and never miss a thing!!



Dr. Holley displays the rock that some people believe has a carving of a mastodon. It has not yet been verified by any scientist that this is a rock carving of the long-extinct animal. Photo: Dr. Holley
Dr. Holley displays the rock that some people believe has a carving of a mastodon. It has not yet been verified by any scientist that this is a rock carving of the long-extinct animal. Photo: Dr. Holley

About forty feet beneath Lake Michigan’s glowing waters, Dr. Holley discovered stones arranged in a long line, over one mile in length.

The stones have been dated to approximately 9,000 years ago. That was 4,000 years before Stonehenge was built and approximately two thousand years after the Ice Age ended. It occurred when the lake bed was dry and before Grand Traverse Bay existed.”

“This site seems to gain a life in the media about every six months or so. Sadly, much of the information out there is incorrect. For example, there is not a henge associated with the site and the individual stones are relatively small when compared to what most people think of as European standing stones.

It should be clearly understood that this is not a megalith site like Stonehenge. This label has been placed on the site by individuals in the press who may have been attempting to generate sensation about the story and have not visited the site. The site in Grand Traverse Bay is best described as a long line of stones which is over a mile in length,” Dr. Holley said.

It is, however, not the only strange prehistoric submerged site in this region. While exploring Lake Huron, one of North America’s five Great Lakes, underwater archaeologists discovered traces of an ancient lost civilization that is twice as old as Stonehenge and Egypt’s Great Pyramids.

Sonar Image of the stones. Stones Beneath the Waters of Lake Michigan. CREDIT: Creative Commons
Sonar Image of the stones. Stones Beneath the Waters of Lake Michigan. CREDIT: Creative Commons

Dr. John O’Shea from the University of Michigan has been working on a broadly similar structure over in Lake Huron. He through a leap of innovative thinking, concluded that the structure was perfect for caribou hunting corridors.

According to reports, underwater archaeologists have discovered what appears to be a dry land corridor that once connected northeast Michigan and southern Ontario. Scientists say the main feature, known as Drop 45 Drive Lane, is the most complex hunting structure discovered beneath the Great Lakes to date. The 9,000-year-old limestone structure consists of two parallel lines of stones that lead to a cul-de-sac lined with natural cobblestones. If the findings are correct, the hunting complex would be twice as old as Stonehenge.

It is highly possible that the site in Grand Traverse Bay may have served a similar function to the one found in Lake Huron.

The exact location of the “Stonehenge-like” structure in Lake Michigan is still a mystery. In order to show the Grand Traverse Band of Ottawa and Chippewa tribes respect for their ancestral heritage and to prevent the site from being inadvertently destroyed, Dr. Holley was kind enough to notify them of his discovery.

Cover Photo: Creative Commons

Related Articles

Stone Age Farmers Settled Near Dortmund Airport 7,000 Years Ago

24 August 2025

24 August 2025

Archaeological discoveries at Dortmund Airport reveal that early Neolithic farmers lived and built houses in the region nearly 7,000 years...

40.000-Year-Old Mammoth Bones Discovered in a Wine Cellar in Austria

25 May 2024

25 May 2024

A winemaker has discovered mammoth bones up to 30,000 to 40,000 years old in a wine cellar in Lower Austria. ...

1500-Year-Old Petroglyphs Found in Central Iran

13 April 2021

13 April 2021

Researchers have discovered 70 petroglyphs carved into the rock that they think is from the Sassanid era. The petroglyphs were...

3500-year-old mysterious hieroglyphs discovered in Yerkapı Tunnel in Hattusa deciphered

12 October 2023

12 October 2023

Some of the Anatolian hieroglyphs discovered last year in the Yerkapı Tunnel in Hattusa, the former capital of the Hittite...

A statue of God Apollo was found during sewerage works in Afyon city in western Turkey

30 May 2021

30 May 2021

A statue thought to belong to God Apollo was found during sewerage works in Afyon city in western Turkey. During...

A new finding in Persepolis reveals a Royal wall

23 October 2023

23 October 2023

A new find at Persepolis, whose magnificent ruins rest at the foot of Kuh-e Rahmat (Mount of Mercy) in southwestern...

Large Roman Complex found in Swiss Gravel Quarry

30 August 2023

30 August 2023

Archaeologists have discovered the remains of walls of a Roman building complex built nearly 2,000 years ago in the Äbnetwald...

2.3-meter sword found in 4th-century tomb in Japan

27 January 2023

27 January 2023

The largest bronze mirror and the largest “dako” iron sword in Japan were discovered at the Tomio Maruyama burial mound...

Siberia’s Last Shaman: DNA Study Uncovers a Woman Who Defied Empire and Time

26 January 2026

26 January 2026

A groundbreaking DNA study of naturally mummified remains in Siberia has revealed the story of one of the last Indigenous...

Mendik Tepe: A Neolithic Discovery That Could Rewrite History Before Göbekli Tepe

29 August 2025

29 August 2025

Archaeologists working at Mendik Tepe, a prehistoric mound in southeastern Türkiye, are unearthing evidence that may date earlier than the...

Bronze Age metal hoard discovered in the Swiss Alps at Roman battle site

29 June 2023

29 June 2023

Archaeologists excavating the Switzerland Oberhalbstein valley have discovered a metal hoard containing more than 80 bronze artifacts dating from 1200...

Ushabti figurines on display at Izmir Archeology Museum

18 September 2021

18 September 2021

The 2,700-year-old “Ushabti” statuettes, discovered in archaeological digs in western Turkey and used in Egyptian burial ceremonies, are being shown...

Two monumental sculpted Roman heads unearthed in Carlisle, northern England

25 May 2023

25 May 2023

Two monumental statue heads believed to be dated to the early 3rd century have been unearthed during excavations at a...

Remains of 14th-century Synagogue thought to be one of largest in region discovered in Poland

14 August 2023

14 August 2023

The remains of what is thought to be a sizeable 14th-century synagogue complex, including a mikvah, have been discovered during...

Submerged Land Bridge Beneath the Aegean May Have Carried Early Humans From Türkiye to Europe

21 September 2025

21 September 2025

A groundbreaking archaeological study has revealed that early humans may have crossed from modern-day Türkiye into mainland Europe via a...