What century were the Leiper Canal and Duluth Ship Canal built?
Duluth Ship Canal The Duluth Ship Canal is an artificial channel cut through Minnesota Point, providing direct access to Duluth harbor from Lake Superior. Begun privately in 1871, it was put under federal supervision and maintenance several years later. It is still an important component of the harbor facilities.
Co-operative Central Exchange Co-operative Central Exchange (CCE, Keskusosuuskunta), founded in 1917 and known from the spring of 1931 as Central Co-operative Wholesale, was the coordinating entity of a network of consumers' co-operatives located primarily in the states of the American Upper Midwest. Based in the Great Lakes port city of Superior, Wisconsin, located adjacent to the Finnish enclave of Duluth, Minnesota, the Co-operative Central Exchange produced an array of its own branded products under the "Red Star" and "Co-operators' Best" brand names and did annual volume well in excess of $1 million from 1928 on.