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GRASS Help System |
The DMA has a comprehensive distribution program for DTED (available free of charge to organizations within the Department of Defense). All non-Department of Defense agencies and private companies can obtain DTED-1 data, but must purchase it from the U.S. Geological Survey (i.e., USGS's 1-Degree DEM). The Army has recently established a single point-of-contact at the U.S. Army Engineer Topographic Laboratories (USAETL) for all matters related to the acquisition and use of digital terrain data. Orders for DMA data must be submitted by letter request through the Concepts and Analysis Division (CAD) at ETL. For information on the availability and ordering of DMA elevation products contact:
Questions regarding availability and ordering of DTED data distributed by USGS (their 1-degree DEM) or any other USGS digital cartographic and geographic data should be addressed to:
Private companies generally do not have comprehensive production and distribution programs like those of the DMA and USGS. However, the private sector is a viable source for obtaining elevation data for many geographic areas, at higher resolutions (if desirable) than are available from the DMA and USGS, in a brief time period. One of many firms able to provide information on elevation data is: