There’s a dangerous passage through Lake Huron where many ships lie at the bottom of the sea: “Shipwreck Alley.”
Unpredictable weather, murky fog banks, sudden gales and rocky shores are responsible for more than 100 known shipwrecks. Thunder Bay Sanctuary in Alpena manages the 4,000 acres of water that contains these wrecks.

The sanctuary continues to find new wrecks. The Ironton was discovered in March of 2023 using 3D scanners after years of searching.
Folks can get a glimpse of Michigan history via a glass-bottom ferry that gets you pretty close to these wrecks without diving.
And the sanctuary is active in its efforts to learn more about the waters of Lake Huron. It's currently mapping 4,300 square miles of the sea floor. We'll tell you more about that work and other efforts in future Maritime Time segments.
What other discoveries lie on the lake bed? What cool stories do you have to share related to the Great Lakes?