Soil phosphorus retention potential in the United States Pacific Northwest summarized for NHDPlus v2 catchments
This spatial data set was created by the U.S. Geological Survey (USGS) to represent the area of soils with 
different levels of phosphorus retention potential in the Pacific Northwest region of the United States (Hydro 
Region 17; Major River Basin 7 (MRB7)) within each incremental watershed delineated in the NHDPlus …