HOUGHTON (AP) -- Michigan Technological University is working to save hundreds of boxes of documents from its archive that got soaked by a sprinkler system during a fire.
WLUC-TV reports 680 boxes of wet documents are being sent to a freeze-drying facility with hopes that they can be saved by removing moisture from them.
The cause of Friday's fire in the basement of the Houghton school's library hasn't been determined.
Michigan Tech says the fire itself didn't get to an extensive amount of material, but water from the sprinkler system damaged about 200 square feet of materials.
Some of the damaged documents include records of some area mining companies, records from the steel workers union at the White Pine Mine and photographs.
The school's collection of newspapers and blueprints wasn't affected.
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