Minnesota Public Radio slideshow:
Dancing on water
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As part of the Solstice River event, the Stone Arch Bridge becomes a miniature representation of the entire Mississippi. Viewers can trace the flow of pollution from one city to the next. Each foot of the bridge represents one mile of the river. (Photo by Bruce Chalgren)

As part of the Solstice River event, the Stone Arch Bridge becomes a miniature representation of the entire Mississippi. Viewers can trace the flow of pollution from one city to the next. Each foot of the bridge represents one mile of the river.

(Photo by Bruce Chalgren)
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