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File:US-1-map.png - Wikimedia Commons
Route 66 maps in each state, Route 66 segment maps, Route 66 city maps
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United States/Road signs - OpenStreetMap Wiki
1. Route 66 Overview (U.S. National Park Service)
Figure 2E-11. Interstate and U.S. Route Signs
Map of the US highway system
Route 66 | Construction, Popular Culture, & Facts | Britannica
Figure 2D-3 Long Description - MUTCD 2009 Edition - FHWA
Drive Cross Country on US Route 6 | Getaway Mavens
U.S. Route shield - Wikipedia
Drive Cross Country on US Route 6 | Getaway Mavens
Drive Cross Country on US Route 6 | Getaway Mavens
Road Trips Through America: East to West on Route 66!
American Highways 101: Visual Guide to U.S. Road Sign Designs & Numbering Systems - 99% Invisible
:max_bytes(150000):strip_icc()/nevada-route-6-ROUTESIX0517-260d01ded6054a71b8f50833538cbd2d.jpg "Road Trip Guide: What to See on U.S. Route 6")
Road Trip Guide: What to See on U.S. Route 6
American Highways 101: Visual Guide to U.S. Road Sign Designs & Numbering Systems - 99% Invisible
Route 66 Highlights State by State | Moon Travel Guides
10 Longest Highways & Interstates in America | TopMark Funding®
2. Before 1926: The Origins of Route 66 (U.S. National Park Service)
Loneliest Road in America – Travel guide at Wikivoyage
15 Best Road Trips in the US To Take in 2023
