USGS Topographic Base Map from The National Map

US Geological Survey National Geospatial Technical Operations Center

Note: Sometimes this map loads very slowly, or not at all. This is an issue with the USGS servers and is beyond the control of

Data Source


USGS Topo is a tile cache base map service that combines the most current data in The National Map (TNM), and other public-domain data, into a multi-scale topographic reference map. Data themes included are Boundaries, Geographic Names, Transportation, Contours, Hydrography, Land Cover, Shaded Relief, and Bathymetry. This service is designed to provide a seamless view of TNM data in a geographic information system (GIS) accessible format.


U.S. Geological Survey (USGS)

Access/Use Constraints

None. Acknowledgement of the originating agencies would be appreciated in products derived from these data.

Distribution Liability

Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data are directly acquired from a U.S. Geological Survey server, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein.

Map software is provided ‘as-is’, without any express or implied warranty. In no event will be held liable for any damages arising from the use of this software. The user assumes all risks associated with the use of this software. will not be held responsible for any inaccuracies and no responsibility is assumed for damages or other liabilities due to errors, installation, accuracy, availability, use or misuse of the data presented.

Full Metadata Link

Downloadable Version for Offline Use

None available at this time.