Duluth, Minnesota four Catholic schools with coverage up to grades 6 or 8, two Protestant schools, two Montessori schools, and six other charter and private schools. Due to its proximity to the Great Lakes, Duluth is the location for the Large Lakes Observatory. The Large Lakes Observatory operates the largest university-owned research vessel in the Great Lakes, the R/V Blue Heron. Built in 1985 for fishing on the Grand Banks, the Blue Heron was purchased by the University of Minnesota in 1997, sailed from Portland, Maine, up the St. Lawrence Seaway to Duluth, and converted into a limnological research vessel during the
Gunflint and Lake Superior Railroad Gunflint and Lake Superior Railroad The Gunflint and Lake Superior Railroad (G&LS) is a defunct Minnesota logging railroad that operated in the Thunder Bay District of northwestern Ontario and in Cook County of northeastern Minnesota. The G&LS was built in 1902 by the Pigeon River Lumber Company to harvest primarily white pine and norway pine from the eastern side of Gunflint Lake. The logs were then transported to the company's sawmill in Port Arthur to be processed. The line originated at the Canadian Northern Railway-Duluth Extension (PAD&W Railway) at Little Gunflint Lake, crossed the Canada–United States border, travelled along the