This is the home page of the Quaternary Geographic Information System (GIS) Laboratory at the Institute of Arctic and Alpine Research (INSTAAR) at the University of Colorado. The laboratory supports quantitative spatial...

The National Map Corps consists of citizens who devote some of their time to provide mapping information to the U.S. Geological Survey. Volunteers may download a guide that provides instructions on how to collect and...

These Geographic Information Systems (GIS) datasets from the U.S. Geological Survey (USGS) can be used to determine projected sea level rise for the coastlines of the United States. They are stored in an attribute table...

NASA's Visible Earth is a searchable directory of images, visualizations, and animations of the Earth. The images are also listed under the following categories: agriculture, atmosphere, biosphere, cryosphere, human...

Geographic Information System (GIS) datasets available at this site include terrain, land use and land cover (LULC), and Digital Line Graphs (DLG). Terrain data includes USGS 7.5-min Digital Elevation Models (DEM) and...