Due to a lapse in appropriations, the majority of USGS websites may not be up to date and may not reflect current conditions. Websites displaying real-time data, such as Earthquake and Water and information needed for public health and safety will be updated with limited support. Additionally, USGS will not be able to respond to inquiries until appropriations are enacted.  For more information, please see www.doi.gov/shutdown

NGP Standards and Specifications

Topographic Maps

Topographic maps are general-use maps at medium scales that present elevation (contour lines), hydrography, geographic place names, and a variety of cultural features. 

USGS standard documents define USGS topographic maps.  

USGS specification documents define the detailed requirements for producing USGS topographic maps.

US Topo: Maps for America

US Topo:  Maps for America

The USGS digital topographic map series, named “US Topo”.

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Historical Topographic Map Collection

Historical Topographic Map Collection

Digital archive of about 190,000 printed topographic quadrangle maps published by the USGS from the inception of the topographic mapping program in 1884 until 2006.

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