Researchers in southern Minnesota are hoping a photo a day will show where the bluffs are washing away in the Le Sueur River watershed.
And that may help guide policy makers on the best ways to slow the damaging sediment loads that are clouding the Mississippi River, filling in Lake Pepin and carrying pollutants to the Gulf of Mexico.
The Free Press of Mankato reports that Gustavus Adolphus College, Minnesota State University and the National Science Foundation are behind the installation of cameras to shoot bluffs regularly. The goal is to show what's causing the most erosion.
Solving erosion and sediment problems has been hard. The amount of soil washing off farm fields has been greatly reduced, but researchers say the problem has shifted to bank and ravine erosion.