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ShipwreckFreshwaterTechnical DiveSource Checked

NBM Dive Site Resource

Choctaw (Lake Huron)

Offshore Lake Huron, Michigan, United States

TECHNICAL DIVE ONLY — Choctaw is a Lake Huron shipwreck documented by NOAA at 300 ft / 91 m. This depth exceeds recreational limits and requires appropriate technical and decompression training.

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Historic Picture Placeholder

Old-fashioned maritime line drawing reserved for a future historic photograph
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WaterFreshwater
AccessOffshore boat / technical dive charter
ExperienceTechnical dive only — beyond recreational depth limits; appropriate deep technical and decompression training required
Maximum depth300 ft / 91 m (NOAA)
Best seasonSeasonal details pending
VisibilityVisibility varies

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.

Site media

Photographs

Three views rotate from the published gallery on each visit.
Illustrated scuba diver reserved for a future dive-site photograph
Dive Photograph PlaceholderDive-site photograph pending
Illustrated scuba diver reserved for a future dive-site photograph
Dive Photograph PlaceholderDive-site photograph pending
Illustrated scuba diver reserved for a future dive-site photograph
Dive Photograph PlaceholderDive-site photograph pending

Contributor media

Dive videos

Three featured video positions are reserved on every profile.
Dive-site video pending
Dive-site video pending
Dive-site video pending

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.
Published reference coordinates45.53427, -83.50927
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Map zoom level 1 of 11

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.
Automatically checked
No recent diver reports from the past 14 days

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.

Diver field observation

Report temperatures

Reports publish automatically when the date, depths, and temperatures pass the checks. You must be signed in to submit.

Depth readings

Why divers know this place

Highlights

NOAA-documented Great Lakes wreck: Steel semi-whaleback; 267 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
Steel semi-whaleback
Vessel length
267 Feet

History and significance

At the close of the Civil War, iron and steel ships began to dominate the shipbuilding trade, ultimately replacing the traditional wooden hulls of America's merchant fleets. The ship-building city of Cleveland, Ohio, with abundant coal, iron, and capital, naturally turned to steel and the innovative vessel designs it made possible. Soon, shipyards were producing larger and more efficient cargo carriers. The straight back or "monitor" design, a direct descendant of the iconic whaleback design, appeared in 1892. This design, produced by the Cleveland Ship Building Company, had a conventional bow, but the ship's metal sides slanted outward from the main deck to the waterline at almost a 45 degree angle. The hull resembled later submarines. All cabins were located at the stern, and the smoke stack was straight up and down. The "monitor" never fully developed as a ship class and only three were built: Andaste , Choctaw , and Yuma . Choctaw was 266.9 feet in length, with a beam of 38.1 feet and a 17.9 foot depth of hold. The ship registered 1,573 gross tons, with a capacity of 3,050 tons. It was powered by a 900-horsepower triple expansion engine and two Scotch boilers. Like many Great Lakes ships, Choctaw was not immune to mishaps. In April 1893, an engine explosion killed two crew members. The vessel sank at Sault Ste. Marie in a collision with the steamer Waldo in May 1896. A few years later, in May 1900, Choctaw grounded near Point au Pins, and in April 1902, Choctaw struck a rock at Marquette and partly sank after getting inside the harbor. The ship's fatal blow came on July 12, 1915, off Presque Isle. Up-bound in a dense fog with a cargo of coal, Choctaw was hit between No. 1 and No. 2 hatches by Canadian Steamship Company freighter Wahcondah . Although the ship sank in

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.