What Happens When Rivers Merge?

One of the articles in the most recent e-newsletter from Friends of the Mississippi River (Special Places: Confluences where great rivers merge) includes aerial shots of the Mississippi River merging with other rivers. It's interesting to see how different the water quality can be between two rivers. We witnessed this first hand during a pontoon ride with forest rangers a few years ago, but it's even more stunning to see from above:

It's an informative article - please click on the link to read about it and view additional pictures.