NBM Dive Site Resource
D.R. Hanna
Offshore Lake Huron, Michigan, United States
TECHNICAL DIVE ONLY — D.R. Hanna is a Lake Huron shipwreck documented by NOAA at 135 ft / 41 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.
Lake Trout
Salvelinus namaycushNOAA places the inverted D.R. Hanna in about 135 feet of Lake Huron water and documents lake trout in the sanctuary fish community. A passing fish may circle above or beside the wreck.
Knepp Timothy, U.S. Fish and Wildlife ServiceOpen Aquatic Life Profile →
Lake Whitefish
Coregonus clupeaformisNOAA documents lake whitefish in Lake Huron. At this deep wreck, a sighting is most plausible close to the hull or surrounding lakebed when seasonal movement and temperature align.
Seb951Open Aquatic Life Profile →
Burbot
Lota lotaNOAA notes that burbot often appear at deeper Lake Huron shipwrecks. Look along shaded lower structure and the bottom without entering or disturbing the wreck.
USFWS Mountain-PrairieOpen Aquatic Life Profile →
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: Motor: steel bulk freighter; 532 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
- Motor: steel bulk freighter
- Vessel length
- 532 feet
History and significance
Carrying 377,000 bushels of wheat from Duluth, Minnesota, and bound for Buffalo, New York, the steel bulk freighter D.R. Hanna was run into and sunk by the steamer Quincy A. Shaw . Hanna rolled over and is now resting upside down on the lake bottom. It is the largest wreck in Thunder Bay National Marine Sanctuary.
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.