NPS Photo Keweenaw County Historical SocietyThis lesson is about shipping on the Great Lakes. From 1840 to around 1900, ships were the best way to move people and things into and out of towns on the Keweenaw Peninsula. Sailing on the Great Lakes can be very hard. Lighthouses were built to help sailors travel safely. The Eagle Harbor Lighthouse is still used today!Check out the activities below!
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Last updated: January 6, 2026