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.
Jay Cooke State Park Jay Cooke State Park is a state park of Minnesota, United States, protecting the lower reaches of the St. Louis River. The park is located about 10 mi southwest of Duluth and is one of the ten most visited state parks in Minnesota. The western half of the park contains part of a rocky, 13 mi gorge. This was a major barrier to Native Americans and early Europeans traveling by canoe, which they bypassed with the challenging Grand Portage of the St. Louis River. The river was a vital link connecting the Mississippi waterways to the west with the Great Lakes to the east.