GeoPad^(TM)

Introduction

What's New?

Presentations and Publications

Use Cases

Hardware

Software

Data

FAQ

Participants

Contacts

Acknowledgements

Digital Data

Finding freely available digital versions of topographic maps (DRGs or DRG-Es), aerial photographs (DOQQs), Digital Elevation Models (DEMs), geologic maps, soil characteristics, land-use zonation, etc., is often most easily achieved through state-level searches.  There are very few national repositories for such data, rather, it seems to fall to a state university or state and local government agencies to provide a clearinghouse for such information.  The list below is by no means complete, but contains some of the URLs we have found useful:

• United States
  • General
    • National Geologic Map Database
    • USDA National Geospatial Gateway
    • Western Region US
    • National Parks Inventory and Monitoring
    • National Parks
    • Libre Map Project
  • Arizona
    • Arizona Regional Image Archive (ARIA)
  • California
    • California Spatial Information Library (CaSIL)
  • Colorado
    • Colorado Geospatial Data Clearinghouse (CGDC)
  • Florida (14-Apr-2005)
    • Florida Department of Environmental Protection
  • Idaho (7-Jul-2005)
    • Idaho Department of Lands (IDL)
    • Idaho Department of Water Resources
  • Indiana (13-Apr-2005)
    • Indiana Geological Survey
  • Michigan
    • Michigan Geographic Data Library (MGDL)
    • Washtenaw County (MapWashtenaw)
  • Montana (7-Jul-2005)
    • Natural Resource Information System (NRIS)
  • Tennessee (14-Apr-2005)
    • Tennessee Spatial Data Server
  • Utah
    • Automated Geographic Reference Center (AGRC and SGID) (ftp site)
  • Wyoming (7-Jul-2005)
    • Wyoming Geographic Information Advisory Council (WGIAC)
    • Wyoming Geographic Information Science Center (WyGISC)  (ftp site)
• Europe
  • Scotland
    • British Geological Survey
      • Digital Data Catalogue
      • Digital Geologic Map of Great Britain (DiGMapGB)
    • The Landmap Project
    • National Library of Scotland - Digital Library Maps
  • Spain
    • Catalonia

Suggestions for other links are welcome!