The Northern Center for Lifelong Learning will host a tour of the Humboldt Ore Processing Mill, formerly utilized by Cleveland Cliffs Iron. It had numerous occupants until 2006, when it was purchased by Rio Tinto. Ore processing began again in 2014 after a $275 million investment to bring the historic mill back into operation.

Car pooling will be available. The program runs from 8 a.m. to noon Friday, Aug. 5. Please register by Friday, July 29, by calling 227-2979. The cost is $4 for NCLL members and $8 for non-members. For more information, call class liaison Jim Matteson at 228-4165.