Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

Delaware River Watershed Initiative - Soils: Pennsylvania

Two seamless soils datasets based on USDA 2019s SSURGO and STATSGO databases were created for the entire DRB region, and information pertaining to various soil-related factors such as erodibility (k factor), available water - holding capacity, texture, etc. were compiled and summarized for discrete mapping units at these two scales. The SSURGO (Soil Survey Geographic) database is compiled at the detailed county-level survey scale that most soil information users are familiar with, and has two basic components: 1) digital boundaries of the detailed soil mapping units, and 2) tabular information on a wide range of soil parameters associated with each mapping unit. The STATSGO (State Soil Geographic) database summarizes similar soils information at a much more generalized 201csoil association 201d scale. Both of these datasets for the DRB area were downloaded from USDA 2019s 201cgeospatial data 201d site at Once downloaded, considerable effort was then expended to first \r\nseam together the data from the separate states overlapping the DRB, and then to 201cpopulate 201d both soil databases by linking a number of 201cattribute tables 201d to the soils polygons contained within the DRB boundary. In this case, over 325,000 soil polygons were populated with information extracted from about a dozen different attribute tables.
Open Space Institute
Regional & NGO Geospatial Data
Delaware River, Delaware, United States
Soils and Soils
Contributed by:
Penn State
More details at