This category contains introductory text about GIS data such as types of error in GIS datasets, types of GIS data (raster and vector), and metadata. Find resources to finding GIS data and where to download data.
Space Shuttle Endeavour lifted off on February 11. One of its missions is an ambitious mapping of the earth. Approximately 80 percent of the Earth will be mapped, an area that covers 95 percent of the Earth’s population.