Arizona - U.S. Highway 66 and business loop 40
![Arizona - U.S. Highway 66 and business loop 40 sign.](img/AZ/AZ19790402i1.jpg)
First westbound shield for Business Loop I-40 and Historic U.S. 66 on Navajo Boulevard in Holbrook after Exit 289.
Photo by Andy Field, 2006.
First westbound shield for Business Loop I-40 and Historic U.S. 66 on Navajo Boulevard in Holbrook after Exit 289.
Photo by Andy Field, 2006.