Updated

Michigan state archaeologists say a shipwreck found in Lake Michigan isn't the Griffin, the earliest known wreck in the Great Lakes.

The Muskegon Chronicle (http://bit.ly/1QQIVju ) reports two men came forward late last year with photos of the shipwreck found off of Frankfort, which is about 40 miles west of Traverse City. The men thought it might be the Griffin, which has been missing since 1679.

Two archaeologists looked at the wreck Tuesday in a dive along with Michigan State Police officers. State Historic Preservation Office spokeswoman Laura Ashlee says divers found an 80-foot wooden hull, which she says is too long to have been the Griffin.

Ashlee said one archaeologist thought the shipwreck was a tug boat and saw some steam machinery on it.

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Information from: The Muskegon Chronicle, http://www.mlive.com/muskegon