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
Duluth Transit Authority Duluth Transit Authority The Duluth Transit Authority (DTA) is the transit agency that provides mass transit service — currently, only buses — in the city of Duluth, Minnesota, United States. The agency also serves nearby Proctor, Minnesota, and Superior, Wisconsin, as well as the eastern edge of Hermantown, Minnesota. The organization was formed in 1969 by the Minnesota State Legislature. In 2009, the DTA was named Transit System of the Year by the Minnesota Public Transit Association. Express service is provided during rush hours to New Duluth (2X), Proctor (3X), Lakeside (7X – PM only), Superior (16X – PM only),