Polowat navigator Mario Benito unlashes the mast of the waa herak/outrigger sailing canoe, built with assistance from Upper and Lower Sioux community members. His assistant, Laureano Dilipwy (gray hoodie), looks on in the foreground, while project researchers Katie Johnston-Goodstar, Roxanne Gould, and Lakota elder Charlene O’Rourke take photographs. Image courtesy of Jim Rock.