Welcome to GISuser's Geospatial Data Resources. Our mission is to provide the GISuser community with information and pointers to publicly available data products around the Globe. Please be sure to contact GISuser to suggest additions to the directory or to report bad or broken links. We also suggest you browse the WeoGeo Market for a vast collection of freely downloadable data. Note: This catalog is constantly evolving. To submit a Data source CLICK HERE
GTOPO30 is a global digital elevation model (DEM) with a horizontal grid spacing of 30 arc seconds (approximately 1 kilometer). GTOPO30 was derived from several raster and vector sources of topographic information. Data also available for a nominal fee ($10-$25) on DVD or CD-ROM media