Iowa's nick name is the Hawkeye state.The state Iowa is named after the Ioway indians. The national Mississippi Aquarium in Dubuque Iowa. The Maquoketa Caves state park has many unusual rock formations like Balanced Rock and Natural Bridge.The first public library opened in Fairfield in 1853. a railroad used to run where the Wabash Trace Nature trail is now. An artist from Iowa Grant Wood painted many paintings of Iowa's farm life. Deer are Iowa's biggest wild animal.Hundreds of Bald eagles spend the winter in Iowa.Effigy mounds have 200 mounds 30 of them are shaped like animlas.