Minnesota Geological Survey County Atlas Series C-23, part A Benton County, Minnesota Scale 1:100,000, 1:200,000 Dale R. Setterholm, Project Manager April 2010 Digital products ------------------------------------------------------------------------ All digital data for the Benton County Geologic Atlas is provided in the zip file C23_cd.zip. The title refers to the CD/DVD available from the MGS where the data is available as shapefiles and ESRI grids and formated into an ArcGis project. The projects are also available within the zip file. If you would prefer to have the digital data on DVD, contact our Map Sales Department at (612) 627-4780, ext. 238. Freeware versions of software to extract the zipped files are readily available for almost any platform (pc, Unix, Mac,..) for download via the web. All shapefiles are registered in UTM coordinates, zone 15N, NAD83 projection. Metadata for the GIS files is provided in the metadata folder as Microsoft Word documents or xml files. The published paper maps included in the geologic atlas can be viewed as pdf versions of the plates (see directory plate_pdfs): pl1_db.pdf = data-base map pl2_bg.pdf = bedrock geology map pl3_sg.pdf = Quaternary (surficial) geology map pl4_qstrat = glacial geology cross sections pl5_bt_dt_sdm = bedrock topography, depth to bedrock, and sand distribution model C23_cd.zip--Arcmap 9.3 mxd and shapefiles and ArcGIS Grids, illustrating the geology of Benton County. The C23cgabenton.mxd will not run under older versions of Arcmap, but the shapefiles can be loaded into any other version. Also included in the C23_cd.zip is a C23cgabenton.pmf file. This file is for the ESRI program ArcReader which can be downloaded freely from the esri.com web site. This will allow anyone to view the project data and maps, the limitation is that independent data cannot be added to the ArcReader project. Files in the project are listed in the Introduction to GIS or read the intro1st.pdf in the figures folder. The folder C23_Benton_autorun contains a DVDRUN.exe file that will mimic the autorun DVD on the local drive; as long as this folder and the folder C23_cd are at the same root level of the drive. The C23_cd folder is obtained by downloading and unzipping the C23_cd.zip file. The pdf maps should be viewed using Acrobat Reader 5.0 or higher for best results. If necessary, download the files in binary, not ASCII. If you would like paper copies of the geologic plates; contact the MGS Map Sales office at 612-627-4780, ex. 238 and specify publication "County Atlas Series C- 23, part A", or County geologic atlas of Benton County. Any questions concerning, or notification of, problems relating to the geologic digital data should be directed to: Richard Lively Minnesota Geological Survey 2642 University Ave. St. Paul, MN 55114 612-627-4780 ext. 211 lively@umn.edu