Oswego 7 – Lake Ontario Schooner Shipwreck

Explore the mysterious wreck of Oswego 7, a mid-19th-century cargo vessel resting in Lake Ontario, near Oswego, New York. A site for both history and diving.

SHOTLINE WRECKDB /Lake Ontario /Oswego 7
No photo on file
Needs location

Oswego 7

Presumed schooner or small cargo vessel
Lost
Not recorded
Cause
Not recorded
Lives lost
Not recorded
Depth
Not recorded

Reportedly lies in Lake Ontario.

Created 11 Aug 2026 Revised 11 Aug 2026 3 facts · 0 sources
No position on file

Tombstone

Best value from the sources on record.
Type
Presumed schooner or small cargo vessel
Hull
Wood
needs_location 0 sources on file
WaterbodyLake Ontario
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Shotline Diving Wreck Profile

  • Name: Unidentified Oswego 7
  • Type: Presumed wooden schooner or small cargo vessel
  • Year Built:
  • Builder:
  • Dimensions: Length X ft (Y m); Beam; Depth of hold
  • Registered Tonnage:
  • Depth at Wreck Site: 18.3 m / 60 ft
  • Location: Near Oswego, New York

Wreck Location Map

Vessel Type

The Unidentified Oswego 7 is thought to be a wooden schooner or small cargo vessel. These ships were common on Lake Ontario in the mid-19th century, built for durability and practicality to transport goods like lumber, grain, and other commodities. The vessel’s design reflects the utilitarian focus of the working ships of the era.

Description

Lake Ontario played a critical role in the economic development of North America during the 19th century, serving as a bustling trade corridor. Vessels like Oswego 7 were the lifeblood of this trade, connecting ports across the Great Lakes with broader markets via the Erie Canal and St. Lawrence River.

The exact identity and history of this wreck remain unclear due to the absence of distinguishing marks. It likely sank during a storm, a common peril for ships navigating the unpredictable Great Lakes waters. Other possibilities include collisions or mechanical failures, both frequent causes of shipwrecks in the era. The relatively intact condition of the wreck suggests a sudden sinking.

Despite its anonymity, the Oswego 7 represents the resilience and importance of the ships that contributed to the region’s prosperity.

History

The wreck lies at a depth of 10 fathoms (18.3 meters / 60 feet) near Oswego, New York. While partially intact, the structure is fragile due to its age. It remains unidentified despite efforts by local divers and researchers.

Significant Incidents

  • Discovered By: Local divers/researchers
  • Date of Discovery: Not precisely documented

Final Disposition

The wreck lies at a depth of 10 fathoms (18.3 meters / 60 feet) near Oswego, New York. While partially intact, the structure is fragile due to its age. It remains unidentified despite efforts by local divers and researchers.

Current Condition & Accessibility

There are no active Notices to Mariners (NOTMARs) associated with the Oswego 7 wreck. While it is not a navigational hazard, divers should approach with caution due to potential risks such as structural instability and entanglement.

Resources & Links

[shotline_reference_links slug=”oswego-7″ title=”References & Links” show_ref_button=”yes”]

The Unidentified Oswego 7 symbolizes the rich maritime history of Lake Ontario, reflecting the critical role of schooners and cargo vessels in the 19th century. While its identity remains a mystery, the wreck provides a tangible link to the region’s economic past and serves as an intriguing site for recreational divers and maritime historians. Further research may one day unveil the full story of this enduring relic.

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Great Lakes Ships

greatlakeships.org vessel records: registry, build, ownership, loss.
Nothing linked from GLS
No record from this source is linked to this wreck yet.

David Swayze Shipwreck File

Swayze Great Lakes shipwreck file and its source citations.
Nothing linked from Swayze
No record from this source is linked to this wreck yet.

BGSU Historical Collections of the Great Lakes

Great Lakes Vessels Index: registry, rig, name changes, owners, disposition.
Nothing linked from BGSU
No record from this source is linked to this wreck yet.

Marmus · Marine Museum of the Great Lakes

Ship lists held by the Marine Museum of the Great Lakes, Kingston: the Mills List (Canadian Coastal and Inland Steam Vessels, 1809–1930) and the Wallace List.
Nothing linked from Marmus
No record from this source is linked to this wreck yet.

Newspapers

Contemporary and later newspaper accounts.
Nothing linked from Newspapers
No record from this source is linked to this wreck yet.

Webpages

Club write-ups, dive-site pages and online compilations.
Nothing linked from Webpages
No record from this source is linked to this wreck yet.
Nothing linked from Stewards
No record from this source is linked to this wreck yet.

Archives (Paperless)

Archival documents, registers, books and private collections.
Nothing linked from Archives
No record from this source is linked to this wreck yet.

Photo gallery

Period photos, illustrations, site and survey imagery. Photos, files and video come from this wreck’s Paperless folder.
No photos yet

Files

Original documents behind the sources. Same Paperless folder as photos and video.
No files attached yet.

Video and 3D

Dive footage, ROV runs and 3D models, each with diver or surveyor credit.
No video linked
SHOTLINE DIVING
Great Lakes and St. Lawrence River wreck research archive.
This record
Oswego 7 · Needs location
Created 11 Aug 2026 · revised 11 Aug 2026
0 sources
Positions are reported, not survey fixes. Do not use for dive planning unless marked high confidence. Report a correction through the Shotline contact page.