# GRASS Help System

## DEFENSE MAPPING AGENCY (DMA)

DMA: Elevation

Data Source: Defense Mapping Agency Aerospace Center 3200 S. 2nd St. St. Louis, MO 63118-3399 Attn: PPGD

Data Format: raster

Scale: 1:250000

Data Coverage: Entire U.S. and many parts of the world.

Data Description: Regular array of elevation values latitude/longitude referenced with a spacing of 3 arc-seconds. Data are produced by digitizing 1:250000 topographic maps. For more information refer to USGS Circular 895-B, which describes both the DEMs produced by USGS and those produced by the DMA.

Media: Non-governmental parties order data through the USGS. Data are available on 9-track, 1600 bpi magnetic tape.

Aquisition Costs: USGS: $75.00 per 1 degree x 1 degree block plus $25 service charge.

Comments: For more information contact the DMA at the address shown above under "Data Source" or:

National Cartographic Information Center U.S. Geological Survey User Services Section 507 National Center Reston, VA 22092 Phone: 703-860-6045

Request USGS Circular 895-B "Digital Elevation Models"

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Automatically created on: Sat Jan 8 06:50:26 2005