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I, SPUI, the creator of this image, hereby release it into the public domain. If that cannot be done for any reason, including the nonexistence of a way to release a work into the public domain, I release it (or my changes in the case of a derivative work) under the following license:
This image is copyrighted. The copyright holder has irrevocably released all rights to it, allowing it to be freely reproduced, distributed, transmitted, used, modified, built upon, or otherwise exploited in any way by anyone for any purpose, commercial or non-commercial, with or without attribution of the author.
Map of the present Interstate Highway System. Base map is [1] (public domain US Federal Government).
Purple: two-digit
Blue: selected three-digit
Green: selected future routes
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The following pages on the English Wikipedia link to this file (pages on other projects are not listed):
The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly called the Interstate Highway System, is a network of freeways in the United States. ... Current U.S. Route shield Current U.S. Route shield in California The system of United States Numbered Highways (often called U.S. Routes or U.S. Highways) is an integrated system of roads and highways in the United States numbered within a nationwide grid. ...
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