Fact Verified Verified — a reviewed claim with a dated source
Off Alpena, Thunder Bay National Marine Sanctuary protects 4,300 square miles of Lake Huron and a nationally significant collection of historic shipwrecks.
Place · USA
Alpena, Michigan
USA
4 published facts
Verified facts
Fact Verified Verified — a reviewed claim with a dated source
The sanctuary surrounding Alpena spans 230 miles of shoreline, reaches 750 feet deep, and includes eight historic lighthouses.
Fact Verified Verified — a reviewed claim with a dated source
NOAA counts 100 discovered shipwrecks in the sanctuary—and estimates another 100 still await discovery.
Fact Verified Verified — a reviewed claim with a dated source
Unpredictable weather, fog, sudden gales, and rocky shoals in and around Thunder Bay have claimed more than 200 vessels.