Mountain Iron Public Library Address: 5742 Mountain Ave, Mountain Iron, MN 55768 Phone: (218) 735-8625 Hours: Mon: 12pm-7pm Tue: 12pm-7pm Wed: 12pm-7pm Thu: 12pm-7pm Sat: 10am-2pm Libraries Other Businesses: Mountain Iron Wastewater Plant at 8808 Grant Dr, Mountain Iron, MN 55768 Mountain Iron Headstart at 5529 Emerald Ave, Mountain Iron, MN 55768