Its location on the shore of Lake Superior made Eagle River a natural port, and it served as a major shipping hub for the copper mined in the Keweenaw in the mid-19th century.

[2] The Eagle River Historic District includes most of the remaining structures that date from the early settlement of the community.

[2] These buildings, both commercial and residential, are simple rectangular structures, typically with symmetrical facades, gable roofs, and rear extensions.

[2] Other significant buildings include the town hall/school; the Keweenaw County Courthouse, Sheriff's residence, and jail; and the Eagle River Lighthouse.

[2] The district also includes stone and frame buildings structures that were once a fuse factory and brewery.