Legacy Notes & Full Historical Record

This section preserves the original unedited Shotline content for this wreck so that no historical detail is lost as we transition to the new logbook format.

Wooden Propeller‑Driven Bulk Freight Steamer – Wreck on Georgian Bay, Ontario (Lake Huron)

Shotline Diving Wreck Profile

• Vessel Name: Thomas Cranage
• Official Number: 145648 (Great Lakes Shipwreck Files)
• Built: 1893, Globe Iron Works, Cleveland, OH (largest wooden steamer afloat on the Great Lakes at 305 ft) (Blue North Scuba Club)
• Type: Wooden bulk freight propeller steamer (~2,219–2,300 gross tons) (NOAA Institutional Repository)
• Length: 305 ft (~93 m) (Blue North Scuba Club)
• Loss Date: 25 September 1911
• Location of Loss: Stranded on Watchers Reef, Georgian Bay, approximately 2 km north of Hope Island, Ontario (RootsWeb)
• Cargo at Loss: Grain (Blue North Scuba Club)
• Crew: 17 aboard; all survived the grounding and initial salvage (RootsWeb)

Vessel Type Description

The Thomas Cranage was the longest wooden steamer ever built on the Great Lakes, constructed in 1893. Designed for bulk cargo service, her size and wooden construction mark her as a transitional vessel in Great Lakes maritime history, combining traditional wooden craftsmanship with large-capacity cargo roles.

Description

• Hull & Construction: Massive wooden hull—wooden framing with typical 19th-century Great Lakes design. At time of loss she was fully laden with grain.
• Condition Post‑Stranding: After grounding, cargo was lightered. Subsequently battered by storms, broken apart. Remains are scattered across shallow water depths (15–55 ft or ~5–17 m) straddling the reef (Blue North Scuba Club). The largest extant wreck portion is the hull bottom in very shallow water where she grounded.

History & Chronology

• Service History: Built in Cleveland, launched into service in 1893. Transferred in 1902 to Cranage Steamship Company. Served routes between Duluth, Tiffin, Midland, and other Great Lakes ports (Blue North Scuba Club, greatlakesvesselhistory.com).
• Final Voyage: Departed Duluth, bound for Tiffin, carrying grain. On 25 September 1911, navigational error caused her to strike Watchers Reef during Georgian Bay transit. Crew survived; grain cargo was removed. Wreck was abandoned and later destroyed by storm action.

Final Disposition

• The steamer broke apart over subsequent storms. Largely destroyed as a wreck; no successful salvage of the hull occurred. Remains lie scattered and fragmented across shallow reef and embayments.

Located By & Date Found

• Not formally “discovered” in the modern archaeological sense. Wreck remains known to divers and local historians. Location documented as reef straddle north of Hope Island. No specified survey date beyond general knowledge from dive community and websites (greatlakesvesselhistory.com).

Notmars & Advisories

• No historical Notices to Mariners located. Changes to reef-based navigation likely prompted informal local advisories. Wreck is now considered a diver-accessible shallow site in Georgian Bay.

Resources & Links

Here are the primary reference sources for Thomas Cranage:

• Great Lakes Vessel Histories – Thomas Cranage: Vessel specs, registration, ownership chronology, grounding incident (greatlakesvesselhistory.com)
• Niagara Divers’ Association (Penetanguishene Divesite Pages): Description of wreck remains, shallow site, visibility, and location details (niagaradivers.com)
• Blue North Scuba Trip Review (2023): Wreck timeline, physical site description, current condition, reef location, approximate depth range (Blue North Scuba Club)
• NoAA Institutional Repository / Dive Summary PDFs: Contextual vessel data including tonnage and construction history in regional wreck surveys (NOAA Institutional Repository)

Keywords, Categories, Glossary Terms

Georgian Bay, wooden bulk steamer, Watchers Reef, 1911 grounding, grain cargo, Great Lakes shipwreck, early large wooden vessel, navigational error, shallow-water dive site.

Summary

The Thomas Cranage was a historically significant Great Lakes vessel: the largest wooden steamer ever built for inland fresh-water service. On 25 September 1911, she ran aground on Watchers Reef during transit and, despite successful evacuation of crew and cargo removal, was destroyed by the following storms. Today, her fragmented remains lie in shallow reef areas north of Hope Island, Ontario, in water depths ranging from about 5 to 17 meters, accessible to divers. The site has received informal documentation in dive community materials but lacks a fully surveyed archaeological site plan.

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