readme.txt 2007/07/05 Minnesota Geological Survey C-6 Geologic Atlas of Dakota County N.H.Balaban and H.C.Hobbs, eds. 1990 9 plates; scale 1:100,000 and smaller. plate 1. data base plate 2. bedrock geology plate 3. surficial geology plate 4. depth to bedrock and bedrock topography plate 5. Quaternary hydrogeology plate 6. bedrock hydrogeology plate 7. pollution sensitivity-Prairie du Chien-Jordan aquifer plate 8. geology and well construction plate 9. geologic resources Included on this ftp site are PDFs of the nine atlas plates at 2 resolutions - 300dpi and 150dpi. Also included are the two shapefiles as listed below. Questions should be directed to Rich Lively ( lively@umn.edu ) or Tim Wahl ( tewahl@umn.edu ) at the MGS, or by phone at 612-627-4780. 2002/06/07. Dakota County Geologic Atlas Minnesota Geological Survey Digital versions in shapefile format of the bedrock geology and the surficial geology maps from the Geologic Atlas are provided here in an unofficial release. No documentaion other than included in this readme is available at this time. The data are provided solely as a convenience for potential users in an "as-is" condition. It is unlikely that these data will be useful without being used in conjunction with the printed version of the Atlas. files: bgpg.zip - zipped version of shapefile for bedrock geology map sgpg.zip - zipped version of shapefile for surficial geology map Projection information: Projection: UTM zone 15; Datum: NAD83