These vector and raster data sets contain the rock unit polygons for the surficial geology in ESRI shapefile and TIF format for the Delaware Coastal Plain covered by DGS Geologic Map No. 12 (Lewes-Cape Henlopen area).
This data is accessible as a map service on Delaware FirstMap.
Additionally, this and other services are available in the ArcGIS Online DGS Map Viewer
Data collected at 1:24,000 scale.