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vector Geospatial Data

Geospatial Data

map Maps

Scanned Maps

image Aerial Imagery

Aerial Imagery

Place

Place

  • Wisconsin7,846
  • Minnesota6,283
  • Pennsylvania4,527
  • Iowa3,680
  • Maryland3,042
  • Russia1,745
  • Indiana1,647
  • Illinois1,398
  • more Place »

Subject

Subject

  • Planning and Cadastral6,948
  • Cadastral maps6,002
  • Topographic maps4,979
  • Military maps4,177
  • Transportation3,390
  • Imagery and Base Maps2,440
  • Boundaries2,399
  • Fire insurance maps2,190
  • more Subject »
About the BTAA Geoportal

The Big Ten Academic Alliance Geoportal provides discoverability and facilitates access to geospatial resources. The resources in the portal are selected and curated by librarians and geospatial specialists at twelve research institutions in the Big Ten Academic Alliance.

The resources include GIS datasets, web services, and digitized historical maps. Learn more about the research institutions involved and the sources of the geospatial records.

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