However, the NPS also considers the Missouri to be the longer river by nearly 100 miles because it’s officially classified as a tributary of the Mississippi River.

Both rivers are major tributaries of the Mississippi. More: Extreme rainfall and historic floods are transforming life in the vast Mississippi River basin. The challenge: How do we respond?

Other approved flood control projects will be funded along the lower Mississippi River and its tributaries ... that has improved about how the system is functioning over the last three decades ...

Other approved flood control projects will be funded along the lower Mississippi River and its tributaries ... that has improved about how the system is functioning over the last three decades ...

A new congressional bill aims to improve fisheries and environmental quality in the Mississippi River ... involved in the management of the river and its tributaries. The commission would be ...

Dry and unfrozen soils along the Mississippi River and its tributaries in Iowa and Illinois have soaked up recent rain.

leading to flooded streams and tributaries. The National Oceanic and Atmospheric Administration reports updated information at river gauges placed along the Ohio and Mississippi rivers.

A man fishes off a dock in Bay City, Wisconsin, a village on the Mississippi River ... agencies involved in the management of the river and its tributaries. The commission would be federally ...