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Map Layer Info

     
 
Two Million-Scale Streams and Waterbodies

What this map layer shows:

Major surface waters at a scale of 1:2,000,000 as of 2005.
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Background Information
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Water features include streams and rivers, canals, aqueducts, lakes, reservoirs, marshes, glaciers, bays, and oceans. Also included are waterfalls, dams, and designated channels, such as the Intracoastal Waterway. The U.S. Geological Survey collects information on water features to support the production of base maps for the United States.

The Two Million-Scale Streams and Waterbodies map layer shows the major water features of 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). Some small features cannot be portrayed at this scale. Descriptive information includes the feature name and the type of water feature represented. 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 surface waters (hydrography) across North America at a scale of 1:10,000,000.

 


 

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Page Last Modified: Tuesday, 07-Feb-2017 17:43:51 EST