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Autodesk Compatible DEMs

 
United States Data

USGS NED (National Elevation Dataset) 10 Meter DEMSNew

The National Elevation Dataset (NED) is a seamless mosaic of best-available elevation data. The 7.5-minute elevation data for the conterminous United States are the primary initial source data. In addition to the availability of complete 7.5-minute data, efficient processing methods were developed to filter production artifacts in the existing data, convert to the NAD83 datum, edge-match, and fill slivers of missing data at quadrangle seams. One of the effects of the NED processing steps is a much-improved base of elevation data for calculating slope and hydrologic derivatives.

MapMart sells DEMs in the following formats: USGS DEM, Vertical Mapper GRD, DXF Mesh, GeoTIFF, ASCII XYZ, Arc ASCII Grid, RockWorks, Terragen and Surfer Grid (Binary or ASCII). All formats are available for immediate download by Seamless Custom area upon submittal of credit card.

Geospatial elevation data are utilized by the scientific and resource management communities for global change research, hydrologic modeling, resource monitoring, mapping, and visualization applications.

 
   NED Seamless Custom Area Begin Search Pricing View Samples
 
 
Click for NED DEM Bundled by State - Bundles include all tiles covering each state seamlessly.
 
  USGS SDTS Digital Elevation Models (DEMS)

Digital Elevation Models (DEMs) are digital files consisting of points of elevations, sampled systematically at equally spaced intervals. MapMart sells DEMs in the following formats: USGS DEM, Vertical Mapper GRD, DXF Mesh, GeoTIFF, ASCII XYZ, Arc ASCII Grid, RockWorks, Terragen and Surfer Grid (Binary or ASCII). All formats are available for immediate download by Quads or by Seamless Custom area upon submittal of credit card. The default projection is UTM for 7.5' DEMs (the majority being in NAD 27) and Latitude/Longitude WGS 72 for 3 arc second DEMs, coordinates being in decimal degrees. Texture Maps can also be purchased with each DEM.

 
Point Spacing Area of Extend      
10 Meter 7.5 minute (7x9 miles)   3 Arc Second - All Formats  - $5 per quad
30 Meter 7.5 minute (7x9 miles)   7.5 Minute (DEM and Others)  - $5 per quad
3 arc second 27°x1° (108x70 miles)   7.5 Minute SDTS  -  FREE
 
  High Detail - 10 and 30 Meter           Seamless or 7 x 9 mile area           7.5 Minute
   High Detail Begin Search Description Pricing View Samples
 
  Low Detail - 90 Meter           Seamless or 108 x 70 mile area           2 ° x 1 °
   Low Detail Begin Search Description Pricing View Samples
 
 
Click for SDTS DEM Bundled by State - Bundles include all overedge quads and are updated monthly
 
  International Data

International Digital Elevation Models (DEMs) cover the entire world seamlessly. There are three seamless DEM products currently available with a fourth partially available. The products available are ETOPO5, ETOPO2, GTOPO30 and SRTM-90. MapMart sells these DEMs in the following formats: USGS DEM, DXF Mesh, GeoTIFF, ASCII XYZ, Arc ASCII Grid, RockWorks, Terragen and Surfer Grid (Binary or ASCII). All data formats are Available for Immediate Download upon submittal of credit card with the data being cut to your specific project area. The projection is Geographic (Lat/Long), WGS-84. Coordinates being in Arc-Degrees.
   International DEM Data Begin Search   Download Samples
 
 
Product Resolution Cost Notes
SRTM-90 3" or 90 Meters $1 per 1,250 Sq. Miles Entire world including Africa and Australia available*
( SRTM Coverage Map )
GTOPO30 30" or 900 Meters $1 per 10,000 Sq. Miles  
ETOPO2 2' or 3.6 KM $1 per 20,000 Sq. Miles Includes Ocean/Water Depths
ETOPO5 5' or 9 KM $1 per 40,000 Sq. Miles Includes Ocean/Water Depths
 
QUICK ORDER!- Text Based - Order entire coverage area quickly
 
* 57 South Latitude to 61 North Latitude