Nutrient and suspended-sediment samples were collected in calendar year 1997 during base flow and storm flow from the Susquehanna River at Towanda, Danville, and Marietta, the West Branch Susquehanna River at Lewisburg, the Juniata River at Newport, and the Conestoga River at Conestoga, Pa. Comparisons of the 1997 yields and the five year baseline yields indicate that total nitrogen loads decreased at five of the six monitoring sites. Total phosphorus yields were significantly lower than the baseline yields at four of six sites and suspended-sediment yields were lower at two of six sites.