Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United States: Surficial Geology
This data set represents the area of surficial geology types in square meters compiled for every 
catchment of NHDPlus for the conterminous United States. The source data set is the "Digital 
data set describing surficial geology in the conterminous US" (Clawges and Price, 1999).  
		
The NHDPlus Version 1.1 is an …