Idaho Interstate 15
![Idaho Interstate 15 sign.](img/ID/ID19790152i1.jpg)
1970 specification highway marker.
Trailblazer shield for Interstate 15 on Business Loop I-15 and U.S. 30-91 in Pocatello.
Photo by Jeff Royston, 2/2/2011.
![Idaho Interstate 15 sign.](img/ID/ID19790152i2.jpg)
1970 specification highway marker.
Trailblazer shield for Interstate 15 on Business Loop I-15 and U.S. 30-91 in Pocatello.
Photo by Jeff Royston, 2/2/2011.