Amasa, MI

ZIP code 49903 encompasses the small town of Calumet in the Upper Peninsula of Michigan. Key landmarks in this area include the historic Calumet Theatre, a beautifully preserved 1900s performing arts venue, and the Coppertown USA Mining Museum, which showcases the region's rich copper mining history. Visitors to 49903 can also explore the Keweenaw National Historical Park, a designated site preserving the area's industrial heritage.