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GIS Data: Starting Points

Good Places to Start (more in other tabs)


  • ESRI Data & Maps Layers covering the USA, international areas, and the entire world (Duke Only)
  • ArcGIS Open Data Over 25,000 free GIS datasets primarily from U.S. federal, state, and local agencies, but some international areas, too.

United States


Local Area

Data for History

Grab Bag

  • GeoCommons Various GIS layers and geospatial data uploaded by anyone.  Hit-or-miss, but you might find anything.

Subject Guide

Mark Thomas
233C Perkins Library
Website / Blog Page