Developing a Web Site to Provide Geologic Data and Map Products for Allen County, Indiana

dc.contributor.authorRupp, Robin F.
dc.contributor.authorOlejnik, Jennifer
dc.contributor.authorHasenmueller, Nancy R.
dc.contributor.authorWalls, A. Chris
dc.contributor.authorRadhakrishnan, Premkrishna
dc.contributor.authorKaraffa, Marni D.
dc.contributor.authorEaton, Nathan K.
dc.descriptionThis poster was presented at the 2007 meeting of the Digital Mapping Techniques Conference in Columbia, South Carolina, May 20-23, 2007.en
dc.description.abstractThe Internet is becoming the medium of choice for delivering geologic information to both technical users and the general public. The Indiana Geological Survey (IGS) is currently creating a Web-based glacial and bedrock geologic map site for Allen County in northeastern Indiana. Allen County is the site of Fort Wayne, Indiana’s second largest city, and lies within IGS mapping and outreach priority areas based on population density and transportation corridors. This Web site provides detailed geologic information in an area that continues to experience pressure on natural resources by a large population and expanding transportation network. It is anticipated that the information from the Web site will be widely used by the general public and by industry and government entities. The Allen County Web site includes an Internet map server (IMS), as well as illustrations, educational summaries, and discussions of geologic maps, terrain images, and databases that complement the IMS. The site provides a front-end to the IGS enterprise geodatabases, which contain information used simultaneously for research and for viewing by the general public. The geodatabase systems allow maps and data to be efficiently created, managed, updated, and distributed. Maps provided on the Allen County Web site include: (1) digital elevation model terrain, (2) Landsat imagery, (3) surficial geology, (4) drift thickness, (5) bedrock topography, (6) bedrock geology, and (7) water-table elevation. Technical database information includes: (1) lithologic information compiled from water-well information in the Indiana Department of Natural Resources, Division of Water well records, (2) natural gamma-ray geophysical log data, (3) stratigraphic test hole data, and (4) petroleum-well data. The development of the Web site was funded by the IGS and the Central Great Lakes Geologic Mapping Coalition.en
dc.description.sponsorshipU.S. Geological Surveyen
dc.identifier.citationRobin F. Rupp, Jennifer Olejnik, Nancy R. Hasenmueller, Marni D. Karaffa, A. Chris Walls, Prem Radhakrishnan, and Nathan K. Eaton, 2008, Developing a Web Site to Provide Geologic Data and Map Products for Allen County, Indiana: Digital Mapping Techniques ‘07—Workshop Proceedings, U.S. Geological Survey Open-File Report 2008-1385.en
dc.publisherU.S. Geological Surveyen
dc.rightsThis work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License. To view a copy of this license, visit or send a letter to Creative Commons, 543 Howard Street, 5th Floor, San Francisco, California, 94105, USA.en
dc.subjectInternet Map Serveren
dc.subjectwater-table elevationen
dc.subjectdrift thicknessen
dc.subjectgamma-ray log dataen
dc.subjectpetroleum-well dataen
dc.subjectwater-well dataen
dc.subjectLandsat imageryen
dc.subjectdigital elevation modelen
dc.subjectbedrock geologyen
dc.subjectglacial geologyen
dc.subjectsurficial geologyen
dc.subjectGreat Lakes Geologic Mapping Coalitionen
dc.subjectIndiana Geological Surveyen
dc.subjectFort Wayneen
dc.subjectAllen Countyen
dc.titleDeveloping a Web Site to Provide Geologic Data and Map Products for Allen County, Indianaen


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