Land Boundary Information System
Mapping Data    DRG    US Topo



Enter FTP Site


About the Data
US Topo is the next generation of digital topographic maps from the U.S. Geological Survey. Arranged in the traditional 7.5-minute quadrangle format, digital US Topo maps are designed to look and feel like the traditional paper topographic maps for which the USGS is so well known. At the same time, US Topo maps provide modern technical advantages that support wider and faster public distribution and enable basic, on-screen geographic analysis for all users.

Each US Topo map quadrangle is constructed in GeoPDF® format from key layers of geographic data found in The National Map:
  • orthoimagery
  • roads
  • geographic names
  • contours
  • hydrographic features
These data were collected from local, State, Federal, and other sources.

Determining the File Name
Use the USGS Quad Name Index to find the 250K quad sheet name.

Sample file name: FL_Hialeah_SW_20090929_OM_geo.pdf
FL = Florida
Hialeah = the quad name
20090929 = creation date

Note that some files in the Florida panhandle may appear in the Alabama folder.

Special Software Needed
  • GeoPDF© is a published extension (OGC 08-139r1) to the Adobe PDF file format, from TerraGo Technologies. It is used to present GIS and mapping data in a standard Adobe Systems PDF.
  • These files can be used in ArcMap.
  • Download your free viewer from TerraGo Technologies.


  • For More Information
    For more information on the US Topo, view the
    brochure or visit the website.
     
    Land Boundary Information System          Send Email          Voice 850.644.2305         FAX 850.644.7360