A transcontinental route is a highway that crosses the entire United States from coast to coast. Examples include U.S. 20, U.S. 30, Interstate 10, Interstate 80, and Interstate 90.
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Cofounder of AARoads.com. Webmaster of both AARoads and Interstate-guide.com. Former cartographer for Mapsource, Inc. and Universal Map Group, LLC. Map specialist for GIS Cartography & Publishing Services.
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