Geospatial Data: USA

Satellite images, aerial photographs, and cartographic products distributed by the U.S. Geological Survey.

The GeoPlatform provides shared and trusted federal government geospatial data, services, and applications for use by the public. Download and visualize governmental, academic, private, and public data.

The USGS Global Visualization Viewer (GloVis) is an online search and order tool for selected satellite data.

Collection of climatic data available online.

Maps & Data

Center for International Earth Science Information Network (CIESIN).

The geographic information available from The National Map includes orthoimagery (aerial photographs), elevation, geographic names, hydrography, boundaries, transportation, structures, and land cover. Other types of geographic information can be added within the viewer or brought in with The National Map data into a Geographic Information System to create specific types of maps or map views.

Simply Analytics has weighted census data available in shapefile format for the Canadian Census. It also has population projection data.