Shipwreck · The Thumb, Michigan

Colonel A.B. Williams

A wreck in Lake Huron, in Michigan's Sanilac Underwater Preserve, at Port Sanilac. Lost in 1864 (collision). Michigan law protects its Great Lakes shipwrecks: look, take nothing.

Open in the viewer from Harbor Park, Port Sanilac →

Quick facts

TypeShipwreck, schooner, 2-mast
Lost5 June 1864
Built1856
Seabed depth25.6 m (84 ft) below the surface
Position43.6121°N, 82.5134°W (approximate, ±100 m)
Position known fromNOAA's nautical chart
From Harbor Park, Port Sanilac20 km (13 mi), bearing 6° N
SourceMichigan DNR shipwreck locations (Michigan Underwater Preserve Council); NOAA ENC US4MI1GK

How to see it

Underwater, so there is nothing to see from the shore. From Harbor Park, Port Sanilac, 20 km (13 mi) away, CoastFinder draws it below the horizon at its bearing and distance, with its charted depth.

On the website for now. This shipwreck is in the web viewer first. The CoastFinder app covers the North Carolina coast today; follow @coastfinderapp to hear when more coasts arrive.

CoastFinder App

Nearby

Not for navigation. Positions and depths come from public charts and records, with their sources named above; they are for looking, not for piloting a boat.