2017 Map of Rock Bluff

Across the river in Iowa, the landscape transitions into a managed floodplain defined by features like Mills Fremont Ditch and the Honey Slough. The settlement of Bartlett and the rail-associated Sargents Spur indicate the importance of transportation and drainage infrastructure in this river valley. Large landforms within the river's path, such as Tobacco Island and Noddleman Island, illustrate the shifting nature of the waterway and its impact on county lines and land ownership.