The Minnesota River Assessment Project was designed to assess the potential for nonpoint source pollution and inventory the physical characteristics of the basin. In this report the results of this assessment are given for selected characteristics and water quality data. The characteristics include subbasins in the Minnesota Rive Basin, hydrology, geomorphology, soils, wetlands, precipitation, runoff, land use, population and nonpoint source pollution. The water quality data selected were BOD, nitrate-nitrite nitrogen, total phosphorus and suspended sediment.