DRB2070 Version 1.0 represents a baseline forecast of urban land cover in the Delaware River Basin (DRB) out to the year 2070. It was developed by the Delaware River Basin Land Use Dynamics Project at Shippensburg University. The forecasts were developed using a SLEUTH urban growth model for the 43 county region of the DRB over the 2001-2006 time period. The model was validated for the 2006-2011 time period. The modeling team used the National Land Cover Database (NLCD) urban classes to represent urban land cover as developed or not developed. The DRB was subdivided into eight modeling subregions in order to improve the quality of the modeling. Additional information is available at: