Land Boundary Information System
US Topo - The Next Generation of Topographic Maps
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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:
These data were collected from local, State, Federal, and other sources.
- geographic names
- hydrographic features
For More Information
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 on the US Topo, view the
or visit the