Grand Portage National Monument in northern Minnesota sits right in the middle of the Canoe Capital of the World. The National Park has many boats on display, from smaller crafts used for gathering rice and hunting to huge Voyageur canoes used to haul thousands of pounds of furs to Montreal. Every summer visitors come to the park not only to learn more about the fur trade, but to also learn the secrets of how these age-old boats were built. In this episode of the Lake Superior Podcast, Walt Lindala and Frida Waara talk with Grand Portage Ranger Karl Koster about what it takes—from materials to technique—to construct an authentic birch bark canoe.