Glacial Environments and Surficial Sediments (GESS) Geodatabase for the Glaciated, Conterminous United States
The GESS data includes polygon file with multiple attributes which describe the lithology, geomorphology, and related depositional environment of Quaternary-age surfical sediments in the glaciated conterminous United States. These attributes include: the map unit (GESS_MU),  a geomorphic modifier (GESS_Modifier), a …