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Map Layer Info

One Million-Scale Railroads

What this map layer shows:

Major railroads at a scale of 1:1,000,000 as of 2012.
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Background Information
Sample map Sample Map
A railroad is a set of parallel rails on which a train runs. Railroads in the United States carry freight and passengers on more than 200,000 miles of track. The Federal Railroad Administration of the U.S. Department of Transportation is responsible for overseeing railroad safety, planning, and development in the United States.

The One Million-Scale Railroads map layer shows the major railroads of the conterminous United States and Alaska that can be represented at a map scale of 1:1,000,000 (1 inch on a map at that scale equals about 15.8 miles on the land surface). Some small railroads and closely parallel tracks cannot be portrayed at this scale. Descriptive information for each section of track includes the names of up to three railroad lines that own the track, as well as the Association of American Railroads reporting mark used to identify each railroad. An older map layer showing Two Million-Scale Railroads as of 2005 is also available. This map layer was compiled by the National Atlas of the United States.

In cooperation with national mapping programs in Canada and Mexico, we also produce a map layer of railroads across North America.