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Jessie Ball duPont Library


Web Resources

  • American Factfinder
    The Census Bureau's gateway to data, including geographic data
  • FEMA Map Service Center
    The source for flood map and Flood Insurance Rate Map (FIRMs) data
  • Flathead County Geographic Information Systems Interactive Map Site
    Using this interactive tool, users can find information about a given parcel such as which districts (zoning, school, fire, water/sewer, voting, etc.) the parcel is in, open surveys of records pertaining to the parcel, and find the Department of Revenue’s tax appraisal information.
  • is a geographic information system (GIS) portal, also known as the Geospatial One-Stop (GOS), that serves as a public gateway for improving access to geospatial information and data.
  • Missoula County Mapping/GIS Division
    Downloadable data, shapefiles, imagery, base maps, etc.
  • Montana GIS Portal
    The Montana GIS Portal is a repository of geographic metadata. Metadata describes GIS resources (data or web mapping services) in the same way a card in a library's card catalog describes a book.
  • MSR Maps (formerly Terraserver)
    MSR Maps provides easy access to aerial photos and topographic mapping data.
  • National Atlas
    The National Atlas is an interactive map with thematic layers. You can designate topics of interest and set a specific geographic area.
  • National Geospatial Program Office
    Conducts policy work on the National Spatial Data Infrastructure (NSDI) program
  • National Map
    The National Map is an online, interactive map service with many possible layers of scientific data.
    **Information from The University of Montana

What is Geospatial Data?

"Information that identifies the geographic location and characteristics of natural or constructed features and boundaries on the earth." so called, geographically referenced data. From FGDC Glossary.

What are Geographic Information Systems (GIS)?

Geographic Information Systems is a computerized database management system that deals with information associated with geospatial data. It integrates, stores, manipulates, analyzes, and displays geospatial data visually.

The definition of GIS varies however. Please visit these sites to learn more about geospatial data and GIS technology