Handcrafted by a family pottery company in St Paul, Minnesota since 1972. This 12oz. mug is decorated in navy blue with the GPS coordinates of the Lake McDonald, the largest lake in Glacier. It is laser-etched with the view of Lake McDonald and the surrounding mountains. Each mug is individually created so that no two are exactly alike. All stoneware is lead free and food safe. Each piece is durable and safe for the microwave, dishwasher, oven and freezer.