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
Minnesota Point in 1870–1871, Minnesota Point is technically an island, connected to the rest of the city of Duluth since 1905 by the Aerial Lift Bridge. Minnesota Point Minnesota Point, also known as the Park Point neighborhood of Duluth, Minnesota, United States; is a long, narrow sand spit that extends out from the Canal Park tourist recreation-oriented district of the city of Duluth. The Point separates Lake Superior from Superior Bay and the Duluth Harbor Basin. Lake Avenue South / Minnesota Avenue serves as a main route in the community. Near the end of Minnesota Point is a small airport, Sky Harbor