USGS Digital Raster Graphics (DRGs)  
   
1:24,000 scale
 
1:100,000 scale
 
1:250,000 scale
 
Digital Raster Graphics (DRG) are scanned raster images of USGS(U.S. Geological Survey) paper topographic maps. They include 1:20,000, 1:24,000, 1:25,000, 1:63,360, 1:100,000 and 1:250,000 scale maps. The geo-referenced scanned images are stored as Tagged Image File Format (TIFF) files and include geo-referencing (Tif World File - TFW) information.The map is scanned at a minimum resolution of 250 dots per inch. Micropath has in stock for immediate delivery all USGS, Teale (California) and TVA (Tennessee Valley Authority) DRG's for the continental United States, Hawaii and Alaska. DRG's are available either in 1° x 1° degree units or by the individual USGS quadmap. If you require assistance in selecting DRG's, please contact us by e-mail or by telephone.

Micropath can produce custom DRGs(CDRGs), clip map collars, mosaic to your specifications.

Call 303.526-5454 or email us at
support@micropath.com









COLLARLESS DRG TOPOGRAPHIC MAPS (CDRG)
   
  • complete coverage of United States including Alaska and Hawaii
  • compatible with GIS /GPS /Imaging Applications.
  Geodetic Coordinate Systems
 
  • Latitude / Longitude
  • UTM
  • State Plane
  • Custom made to your specifications
  DATUMS
 
  • NAD27
  • NAD83
  • WGS84
  • Custom made to your specifications
  Format
 
  • GeoTiff with .TFW & .TAB Files

USGS 30-Meter (1-Second) Digital Elevation Models (DEMs)
Micropath has in-stock all currently available USGS 30-meter (7.5 minute) ASCII Digital Elevation Models for the United States. 30-Meter DEMs are an excellent source of digitized terrain data for 3-D modeling, environmental, animation, educational, contouring, mining, geological and radio propagation applications. 30-Meter DEMs are available in the native USGS ASCII format and the Micropath binary format. The binary format is compatible with Micropath 2001 as well as with radio engineering software available from Softwright(TAP),Safco(Wizard), and Contract Engineering(PATHLOSS).
The Importance and Need for DEMs
To order DEMs, download trial version of MapExplorer and follow the instructions or call us at 303.526-5454

USGS 90-Meter (3-Second) Digital Elevation Models (DEMs)
 
    3-Arc second coverage of the United States is complete its' territories. 3-Arc Second DEMs are available in the native USGS ASCII (.DEM) and Micropath's binary formats(.30m). The binary format is compatible with Micropath 2001, Safco(Wizard), and Contract Engineering(Pathloss) radio propagation software.