Hospital technicians have taken X-rays of a wooden beam that could be part of the Griffin, a ship commanded by the French explorer La Salle that has been missing for more than three centuries.
A team of divers removed the timber from northern Lake Michigan in June after discovering it wasn't attached to buried wreckage. They hope the CT scan of the slab will help pinpoint its age, which could be a significant clue in determining whether it came from the long-lost vessel. The Griffin disappeared in 1679 with a six-member crew.
The scan was done Saturday at Otsego Memorial Hospital in Gaylord. Images will be sent to a Cornell University tree expert.
Expedition leader Steve Libert says he'll keep searching for the Griffin while awaiting results.