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Map Layer Info

Major Roads of the United States

What this map layer shows:

Major roads and ferry crossings. It does not include detailed street information.
opens the U.S. Geological Survey home page
Background Information
Sample map Sample Map
A road is an open way for the passage of vehicles. Major roads include Interstate routes, U.S. routes, State routes, and other large roads. The U.S. Geological Survey (USGS) collects information on major roads to support the production of base maps for the United States. The Federal Highway Administration (FHWA) of the U.S. Department of Transportation is responsible for overseeing highways in the United States, which includes promoting safety, providing technical expertise, developing regulations, and providing development and maintenance of Federal roads. Information on the history of major roads in the United States can be found on the FHWA highway history page.

The Major Roads of the United States map layer shows the major roads and ferry crossings in the United States, Puerto Rico, and the U.S. Virgin Islands that can be represented at a map scale of 1:2,000,000 (1 inch on a map at that scale equals about 31.6 miles on the land surface). Most local streets and small roads cannot be portrayed at this scale. Descriptive information includes the route number and the road type. This map layer was compiled by the USGS.


Map Maker Sample
Printable Maps
Reference and Outline Maps of the United States
Wall Maps
General Reference Maps
Federal-Aid Highway Act of 1956

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