Nestled into the north shore of Lake Superior, the city of Duluth, Minn., sits at the westernmost point of the Great Lakes. Formed by the glaciers that created the lakes themselves, much of Duluth’s Central Hillside neighborhood is built into a rocky, iron-rich slope with soil no deeper than 20 ft to 30 ft at any point and much of it is exposed rock.
The tallest building in Duluth today is only 16 stories and 247 ft tall due to the difficult ground and the winds blowing in off the lake.