9 pls. Scale 1:100,000 and smaller. Pl. 1, data-base; pl. 2, bedrock geology, pl. 3, surficial geology; pl. 4, bedrock topography and depth to bedrock; pl. 5, quaternary hydrogeology; pl 6, bedrock hydrogeology; pl. 7, sensitivity of ground-water systems to pollution; pl. 8, geology well construction; and pl 9, geologic resources. Supplementary files include some ESRI coverages digitized at a later date from the paper maps.