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Iowa River - Wikipedia
Map of Iowa Lakes, Streams and Rivers - Geology.com
Iowa River | Mississippi tributary, watershed, canoeing
Iowa River at Iowa City - National Oceanic and Atmospheric …
Category:Iowa River - Wikipedia
Canoeing & Kayaking - Iowa Department of Natural Resources
Upper Iowa River – Watershed, Water Quality, and River Recreation
Iowa River Water Trail
Explore Iowa: Upper Iowa River - Iowa Natural Heritage …
Iowa - Rivers (U.S. National Park Service)