LIBBY, Mont. – A fire has destroyed a lumber mill in Libby that officials say employed 30 people and was one of the last lumber companies in town. Two structures are a complete loss after a fire broke out Sunday at a Libby lumber mill. Lincoln County Undersheriff Brandon Huff said they got the call just after 2 p.m. for a fire at the SK Fingerjoint, Inc, a mill with 30 employees.  …The business is located at the old Stimson Lumber Company site which closed down in 2008. Their website says SK Fingerjoint opened in 2014 under a former Stimson employee, Dan Kneller.