Watershed Potential to Contribute Phosphorus from Geologic Materials to Receiving Streams, Conterminous United States
This spatial data layer is a cell-based Raster model characterizing the contribution of phosphorus (P) 
to streams from weathering and erosion of surficial geologic materials for the conterminous United 
States, and has been created as part of the SPARROW (Spatially Referenced Regressions on 
Watershed Attributes) …