New Geology Data Portal


Author:Caitlin Dempsey • 7/09/09 • Categorized as Data          

Developed by the Association of American State Geologists (AASG) and the United States Geological Survey (USGS), the National Geologic Map Database (NGMD) is a data portal designed to provide a mapped overview of geologic spatial data and to provide a pointer to users on the source data. 

Portal features include:

  • National-scale bedrock and surficial maps, and four state-scale maps
  • a Dynamic Legend that shows only the map units within the field of view
  • a new Geologic Materials classification, designed to help the layman by bringing these maps into a unified view, using simple terms and definitions
  • a simplified back-end database whose design and science terminologies are related to the new “NCGMP09″ design
  • integration with other NGMDB databases (Map Catalog and Geolex) that provides users with information about the geologic units and source maps
  • links to the source maps and related Web-mapping systems, in the state geological surveys.



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Article originally published: 7/09/09

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