1927-1934
  • North: Spanish Fork, UT
  • South: Nogales, AZ
1934-1992
1992-present
US 89 was one of the original 1926 routes; its original north end was in Spanish Fork.  It is possible that this terminus would have occurred on 300 South Street at Main Street; this photo is looking south on Main:
Picture
Stewart, June 2004
Loafer Mountain dominates the horizon in that direction.  In 1927, this was likely southbound US 91 and eastbound US 50.  US 50 would have continued to the left, and US 89 would have begun there, overlapped with it.  Here we are looking west on 300 South:
Picture
Stewart, June 2004
Possibly that was westbound US 50 (which continued to the right with US 91) and northbound US 89 (which ended there). 

In 1934 the north end of US 89 was extended to its present terminus on the Canada border in Montana, at a port of entry called Piegan.  

​All during that time, the south end of US 89 was at the Mexico border in Nogales AZ:
Picture
c. 1939, Rand McNally
Picture
c. 1971, AZDoT
Obviously I-19 was around by the time of this photo, but Arizona had not yet decommissioned US 89 through here:
Picture
Summa, 1989
As of 2007, there was no longer any reference to US 89; this shot shows the first signage heading north from Mexico:
Picture
Faye and Sandy, 2007
​Below is the signage that was at the south end of the route...
Picture
Summa, 1989
...and here is a more recent shot of the border crossing where US 89 actually ended:
Picture
Faye and Sandy, 2007
In 1992 US 89 was decommissioned through much of Arizona; since then the south end has been at Flagstaff.  

​Technically -- since US routes are not signed through Yellowstone National Park -- US 89 consists of two separate segments.  Photos from its interruption points are available on the pages for North Yellowstone and South Yellowstone.
Research and/or photo credits: Dale Sanderson; Faye and Sandy; Michael Stewart; Michael Summa
Page originally created 1999;
last updated May 23, 2016.