Nation Get to know the Lake Michigan Triangle: The site of unexplained shipwrecks, disappearances dating back to the 1800s October 30, 2021 Alisa M. Schafer, Manitowoc Herald Times Reporter Comments Off on Get to know the Lake Michigan Triangle: The site of unexplained shipwrecks, disappearances dating back to the 1800s Like a northern version of the Bermuda Triangle, the Lake Michigan Triangle has been the site of unexplained shipwrecks dating back to the 1800s.