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USGS Partners with ATDI to Serve Geographic Data
Released: 3/7/2002

Contact Information:
U.S. Department of the Interior, U.S. Geological Survey
Office of Communication
119 National Center
Reston, VA 20192
Hylan Beydler 1-click interview
Phone: 573-308-3752 | FAX: 573-308-3652




The USGS and Advanced Topographic Development and Images(ATDI) (Sterling, VA) have formed a partnership to distribute USGS geographic data to make more public domain data available at no charge while enabling the private sector to have a greater role in the distribution of USGS data.

The USGS Spatial Data Transfer Standard Digital Elevation Models (SDTS DEMs) being distributed by ATDI describe the topography of the land surface. Private industry, government, nongovernmental organizations, and individual citizens depend on a common set of base information that describes the Earth’s surface. They use this information as tools for economic and community development, land and natural resource management, health and safety services, emergency management, defense, and environmental protection.

SDTS data contribute to The National Map--a seamless, continuously maintained set of geographic base information that will serve as a foundation for integrating, sharing, and using other data easily and consistently. Additional information about USGS SDTS data is available at: http://mcmcweb.er.usgs.gov/sdts

The USGS is committed to meeting the Nation’s needs for current base geographic data and maps. By working with partners, the USGS will continue to provide the Nation with access to current, accurate, and nationally consistent digital data and topographic maps derived from those data.

ATDI is the latest commercial vendor to partner with the USGS to distribute free SDTS DEMs on the Internet. ATDI is an online resource for the location and acquisition of a variety of digital map data. ATDI provides the ICS Map Server package that allows import and export of SDTS DEMs, re-projection, tiling, and generic functions for handling DEMs, Images and Land Cover files. ATDI’s interface allows users to enter a central coordinate and immediately retrieve the selected quadrangles. ATDI also sells a worldwide catalogue of digital elevation models, reference images, and ground occupancy information. The SDTS DEMs are available at this ATDI web site: http://64.42.116.14/.

USGS SDTS DEMs will continue to be available for free from GIS Data Depot and MapMart.com. Additional information about GIS Data Depot and MapMart.com is available at: http://www.gisdatadepot.com and http://www.mapmart.com

USGS partners will continue to receive SDTS versions of the DEMs as they are made available by the USGS. Native format DEMs are still available for sale from USGS on various media through Earth Explorer (http://edcsns17.cr.usgs.gov/EarthExplorer/).


The USGS serves the nation by providing reliable scientific information to describe and understand the Earth; minimize loss of life and property from natural disasters; manage water, biological, energy, and mineral resources; and enhance and protect our quality of life.

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