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Encyclopedia Dubuque


"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
Marshall Cohen—researcher and producer, CNN

Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.


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Highway Marker
RAINBOW TRAIL. Registered on May 16, 1922, the Rainbow Trail was a 300-mile route between Dubuque and Hawarden, Iowa. It was sponsored by the Hawarden Booster Club.