Mussel Invasion Devours 150-Year Shipwreck

Underwater view of a coral reef with light rays penetrating the water

A 150-year-old Lake Michigan shipwreck is resurfacing just as invasive quagga mussels chew through America’s underwater history faster than many officials can document it.

Story Snapshot

The luxury steamer Lac La Belle, lost in 1872 with eight fatalities, has been located about 20 miles offshore between Racine and Kenosha, Wisconsin.
Veteran shipwreck hunter Paul Ehorn spent roughly 60 years pursuing the mystery and found the wreck in October 2022 using side-scan sonar.
A 2025 return dive produced 3D modeling, helping preserve details as mussels and time continue to degrade Great Lakes wrecks.
Researchers estimate Lake Michigan may still hold thousands of undiscovered shipwrecks, raising urgency for documentation and stewardship.

A 60-Year Search Ends with a Sonar “Hit”

Paul Ehorn, an 80-year-old shipwreck hunter from Illinois, says he began searching for the Lac La Belle in 1965 and finally located it in October 2022. The find followed a focused two-hour side-scan sonar search after he received a key clue from Ross Richardson, a fellow wreck hunter and author. Ehorn described the moment as solving a puzzle—then immediately turning his attention to what remains unfound.

The wreck’s public reveal did not come immediately. Reports indicate the announcement was delayed while a team returned during the summer of 2025 to gather additional imagery and complete a 3D model, a process complicated by weather windows on open water. That kind of documentation matters because it turns a hidden site into a record that historians and the public can evaluate, even if diving access stays limited.

What Happened to the Lac La Belle in 1872

The Lac La Belle was a 217-foot passenger steamer built in Cleveland in 1864, and its history was already rough before the final disaster. The ship collided and sank in the St. Clair River in 1866, was raised in 1869, rebuilt, and later repurposed by Milwaukee’s Englemann Transportation Company for passenger runs to Grand Haven, Michigan. That rebuild-and-return story was common in an era when demand outpaced safety margins.

The final voyage left Milwaukee on October 13, 1872, carrying 53 passengers and crew along with cargo that included barley, pork, flour, and whiskey. Two hours out, the vessel reportedly began leaking uncontrollably. Deteriorating conditions then compounded the emergency: worsening weather extinguished the boilers, leaving the ship without power when it needed it most. The steamer ultimately went down stern-first around 5 a.m., and one lifeboat capsized.

What Divers Found: An Intact Hull, Missing Cabins, and Mussel Damage

Initial descriptions of the site indicate the oak hull remains intact, while upper cabins are gone—an underwater reminder of how wood, hardware, and exposed superstructure fail differently over time. The wreck is also described as mussel-encrusted, highlighting the accelerating threat from invasive quagga mussels. For everyday Americans, that’s a familiar pattern: nature and time are relentless, but modern pressures can speed destruction if documentation and preservation lag.

Lake Michigan is believed to contain roughly 6,000 to 10,000 undiscovered shipwrecks, a number that puts the Lac La Belle in a much bigger story about cultural memory. Every wreck is a time capsule: how people traveled, how commerce moved, what risks were tolerated, and what communities lost. When those sites decay before they’re mapped or modeled, history becomes guesswork—and families and local towns lose tangible connections to the past.

Competition vs. Public Stewardship in Great Lakes Wreck Hunting

The discovery also illustrates a recurring tension between private searchers and institutional archaeology. Ehorn credited Richardson with a clue reportedly tied to a commercial fisher snagging an item linked to an 1800s steamer, but both men kept details limited, citing competition. That secrecy may be understandable in a niche hobby, yet it can also slow broader verification and coordinated preservation—especially when invasive species and shifting lake conditions are working on their own unforgiving timetable.

Recent Great Lakes finds show multiple pathways to results: anglers stumble onto wrecks, historians use archival work and sonar, and groups create photogrammetry for public education. The Lac La Belle story fits that trend while underscoring a practical takeaway: documenting wrecks quickly may be the only way to preserve them for future Americans. Whatever politics people bring to the table, conserving national heritage should be a nonpartisan baseline—because once it’s gone, it’s gone.