. . "2092147.2" . . "upper Mississippi" . . . "Upper Mississippi River Valley" . . . "Upper Mississippi River" . . . . . . . . . . . . . . . "upper" . . "Upper Mississippi" . . . . "Upper Mississippi River" . . "Mississippi" . . "Upper" . . . "Mississippi Rivers" . . . . . . . . "Upper Mississippi Valley" . . . . . . . "Upper Mississippi." . . . . . . . . "Upper Mississippi River basin" . . . . . . . . . . . . . . "upper Mississippi River" . "Mississippi River" . .