This Simple Map of the Interstate Highway System Is Blowing People's Minds
File:Interstate Highway status September 30, 1976.jpg - Wikimedia Commons
American Development and the Interstate Highway System
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File:Interstate Highway status unknown date.jpg - Wikimedia Commons
Fast Facts: The 47,000-Plus-Mile U.S. Interstate System | Feature | Car and Driver
Road Scholar: Fun Facts About the US Highway System - AutoSlash
Map of the US highway system
9 Things You May Not Know About the U.S. Interstate Highways | From The Kitchen Cabinet
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Here's the Surprising Logic Behind America's Interstate Highway Numbers
American Highways 101: Visual Guide to U.S. Road Sign Designs & Numbering Systems - 99% Invisible
Infographic: U.S. Interstate Highways, as a Transit Map
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File:Interstate Highway plan June 27, 1958.jpg - Wikimedia Commons
The Interstate Highway System | The Geography of Transport Systems
THE INTERSTATE HIGHWAY SYSTEM AT 50 / America in fast lane with no exit / Freeways have changed our way of life and given birth to new industries
An Explanation of the Often Confusing US Interstate Highway Numbering Conventions
United States Numbered Highway System - Wikipedia
United States Numbered Highways
United States Numbered Highway System | Intertropolis & Routeville Wiki | Fandom
