It has been nearly 30 years since special environmental protections were put in place for a 92-mile stretch of the Lower Wisconsin River — from Prairie du Sac to its confluence with the Mississippi River. By most accounts, the river bluffs and water in the main channel are in good shape. But scientists are increasingly concerned about the sloughs, or backwaters of the river, because of excessive growth of algae and other vegetation...

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Ken Notes: Again a very difficult problem on a very beautiful streach of river and the problem may be miles away...