What century were the Leiper Canal and Duluth Ship Canal built?
Leiper Canal Early in the 19th century, the Leiper Canal built in 1828-29 during the middle of the American canal age ran about 3 mi along Crum Creek in Delaware County to its mouth in Eastern Pennsylvania's Delaware Valley carrying its owners quarried products to docks on the Delaware River tidewater until 1852.
Lac La Belle, Michigan Lac La Belle (French: "Lake Beautiful"), is the name given to both a lake and a small unincorporated community in Keweenaw County in the U.S. state of Michigan. The town was originally the site of a stamping plant for the copper mines of the Keweenaw, specifically the Mendota Mine and the Delaware Mine. Copper-bearing rock was transported from the mines to the stamping plant, where it was processed and loaded onto freighters. The lake is a typical "Canadian Shield" type lake averaging approximately 30 feet (9 m) deep, and empties into Lake Superior at Bete Gris, by way of both a natural channel and a dredged canal. The canal was dredged in the 1860s with funding from several copper mining companies, for use by lake freighters, carrying copper ore.