Na.uNep.net
About Na.uNep.net
The North American node of UNEP's Global Resource Information Database (GRID), designated as GRID-Sioux Falls, is located at the EROS Data Center of the United States Geological Survey in Sioux Falls, South Dakota, USA. GRID-Sioux Falls has been operational since 1991 and functions as a partnership between the United Nations Environment Programme (UNEP), the U.S. Geological Survey (USGS), and the National Aeronautics and Space Administration (NASA).[[Category:Global Resource Information Database]]