23 May 2025 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.

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

Ancient tools discovered in Maryland show the first humans came to America 7,000 years earlier than previously thought

23 May 2024

23 May 2024

When and how humans first settled in the Americas is a subject of considerable controversy. A Smithsonian Institution geologist now...

Britain’s oldest decoratively piece of carved wood discovered in a layer of peat

8 June 2023

8 June 2023

A heavily notched oak timber found in a peat layer during construction work turned out to be the oldest piece...

Rare Tales of Merlin and King Arthur Found in 13th Century Manuscript

17 April 2025

17 April 2025

In a remarkable discovery, a fragile manuscript fragment dating back to the 13th century has been found hidden within the...

A New Late Ancient Necropolis Discovered on Hvar Island

10 June 2021

10 June 2021

The protective investigation in the garden of the Radoevi Palace in the town of Hvar on the Croatian island of...

In Germany, volunteers unearthed the largest hoard of Slavic coins to date and bronze-age seven swords

29 November 2023

29 November 2023

Volunteer archaeologists found bronze age seven swords and from the 11th century 6000 silver coins in the northeastern German state...

Dozens of unique bronze ornaments discovered in a drained peat bog in Poland

28 January 2023

28 January 2023

Numerous bronze ornaments have been discovered in Poland’s Chełmno region (Kuyavian-Pomeranian Voivodeship). Archaeologists report that dozens of bronze ornaments, including...

Famous  Roman Dictator Julius Caesar’s Perfume Recreated

2 August 2024

2 August 2024

The Romans are long regarded as heroes in the history of ancient civilizations because of the legacy they have left...

3,000-year-old Treasure on the Iberian Peninsula made with material from a meteorite

7 February 2024

7 February 2024

Scientists have recently discovered that some of the pieces in the amazing Bronze Age collection known as the Villena Treasure,...

In the Mediterranean Oldest Hand-Sewn Boat is Preparing for its Next Journey

25 January 2024

25 January 2024

The oldest hand-sewn boat in the Mediterranean was discovered in the Bay of Zambratija near Umag on Croatia’s Istrian peninsula....

6000-Year-Old Salt Production House Rewrites Europe’s History

31 March 2021

31 March 2021

Archaeologists in the UK have found an ancient stone age-era salt-production house in North Yorkshire, estimated to be older even...

A still life fresco discovered in new excavations of Pompeii Regio IX

28 June 2023

28 June 2023

Archaeologists excavating the ancient city of Pompeii have uncovered a gorgeous still-life fresco depicting a platter covered in food and...

First European farmers’ heights did not meet expectations

9 April 2022

9 April 2022

A combined study of genetics and skeletal remains shows that the switch from primarily hunting, gathering and foraging to farming...

Terracotta Figurines of the ancient cult of the goddess Cybele discovered in Pompeii Domus

26 December 2023

26 December 2023

Archaeologists unearthed 13 terracotta figurines during recent excavations in the Domus adjacent to the “House of Leda and the Swan”...

Military Team Discovers Remarkable 2,000-Year-Old Celtic Artifacts, Including Chariot Parts and Bridle-Bit

4 February 2025

4 February 2025

Military personnel and veterans at RAF Valley in Anglesey on the island of Anglesey, Wales, have uncovered sensational Iron Age...

Mass Grave of 150 Roman Legionaries Discovered in Vienna—First Direct Evidence of Ancient Combat on the Danube Limes

4 April 2025

4 April 2025

Archaeologists from the Vienna Museum have made a groundbreaking discovery on the outskirts of Vienna, unearthing the remains of approximately...