NBM Dive Site Resource
Ohio
Offshore Lake Huron, Michigan, United States
TECHNICAL DIVE ONLY — Ohio is a Lake Huron shipwreck documented by NOAA at 315 ft / 96 m. This depth exceeds recreational limits and requires appropriate technical and decompression training.
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Aquatic life at this dive site
What divers may encounter
Three reviewed connections are featured here. Sightings vary by season, conditions, and chance, so they are never guaranteed.
Aquatic life research in progress
NBM is reviewing a likely local species for this position.
Aquatic life research in progress
NBM is reviewing a likely local species for this position.
Aquatic life research in progress
NBM is reviewing a likely local species for this position.
Site media
Photographs
Three views rotate from the published gallery on each visit.


Contributor media
Dive videos
Three featured video positions are reserved on every profile.Published reference location
Location map
The marker shows the public coordinates associated with this profile. Confirm current access, moorings, and departure details before the dive.Map data © OpenStreetMap contributors
Recent field observations
Diver-reported temperatures
Automatically checked observations from dives during the past 14 days. Three reports are visible at a time; scroll for more.A report that passes the automatic checks will appear here with the dive date, diver’s display name, and temperatures at each depth.
Reports are automatically checked for plausible dates, depths, and temperatures. They are observations, not forecasts; confirm conditions before diving.
Why divers know this place
Highlights
NOAA-documented Great Lakes wreck: Wooden bulk freighter; 202 feet.
Shipwreck-only module
The wreck
This section appears only on shipwreck records and brings the vessel, its loss, present condition, access, and responsible wreck-diving considerations into one place.
- Vessel type
- Wooden bulk freighter
- Vessel length
- 202 feet
History and significance
In September 1894, wooden bulk carrier Ohio departed Duluth, Minnesota, for Ogdensburg, New York, loaded with a cargo of grain. This transit required Ohio to cross Lake Superior, pass through the Soo Locks, then traverse Lake Huron, past Presque Isle and Thunder Bay. Along this route, Ohio encountered heavy weather and busy shipping lanes, a dangerous, yet all too common, combination. Meanwhile, two schooners, Ironton and Moonlight , were being towed by steamer Kershaw . The three ships were heading north when they encountered Ohio in rough weather, 10 miles north of Presque Isle. It was during this critical moment, with the vessels about to pass each other, that Ironton ’s towline parted. The schooner broke free, veered off course and collided with Ohio . Both vessels sank in half an hour. Sixteen crewmembers of Ohio got into lifeboats and were later picked up by schooner Moonlight . The First Mate was picked up by Kershaw after clinging to a floating ladder for nearly two hours. Another steamer passing nearby, the Hepard, picked up two of Ironton ’s crew while five of them, including Captain Peter Girard, perished in the accident on 26 September, 1894. Learn about the discovery in the webstory, “History Meets Technology”
Before you arrive
Access notes
Technical dive only. Confirm current conditions, mooring status, gas plan, decompression plan and operator requirements before departure. NOAA coordinates are reference points, not navigation instructions.
Plan within your training
Conditions and hazards
Depth beyond recreational limits, decompression obligations, cold water, limited light, changing visibility, entanglement and possible wreck overheads. Penetration requires separate wreck-penetration training and planning.
Independent resource notice
This record is a starting point for independent verification. Access, closures, moorings, weather, currents, depth, visibility, operator availability, and site conditions can change without notice. Confirm current information with the responsible operator, property owner, managing authority, or another qualified local source before planning or attempting a dive.