![December 11, 1971: Remembering the Lake Huron Water Supply Tunnel Explosion](http://travelthemitten.com/wp-content/uploads/2015/12/Port-Huron-Tunnel-Explosion-Memorial-470x140.jpg)
December 11 marks the 44th anniversary of one of the deadliest industrial accidents in Michigan history. 22 men working on a water intake tunnel were…
December 11 marks the 44th anniversary of one of the deadliest industrial accidents in Michigan history. 22 men working on a water intake tunnel were…