Duluth is a major port city located in the northeastern part of Minnesota. As the 4th largest city in the state, it has a population of 84,397 estimated in 2007 and is the county seat of St. Louis County. The city is linked to the Atlantic Ocean through Lake Superior and the Erie Canal/New York State Barge Canal, also known as the Saint Lawrence Seaway. The city shares a metropolitan area with Superior, Wisconsin and combined they are the most important ports on the Great Lakes. From their ports, coal, grain and iron ore is transported to the area from the out regions of the country that would otherwise be inaccessible. Duluth is not only a major regional industrial hub for the northern and western parts of Minnesota, but is also the major transportation center for cement, taconite, coal, agricultural products steel and limestone. For more information on Duluth and its surround cities, check out the Minnesota yellowpages.There are many points of interest in the city. Duluth features the Great Lakes Aquarium, the nation's only all-freshwater aquarium, "Park Point," the world's longest freshwater sandbar (6 miles), and the Aerial Lift Bridge which spans into Duluth's harbor. The Glensheen Historic Estate also brings in a lot of attraction year-round. A historic mansion built on Lake Superior by Chester Adgate Congdon in 1908, its massive proportions, detailed ornate rooms and early 20th century feel make it a beautiful day trip.Check out our business directory for other businesses in your area.