End of US highway 191 |
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1927-1934
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1934-1937
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1937-1946
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1946-1962
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1962-1972
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1972-1982
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1982-1992
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1992-1997
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1997-present
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US 191 was an original 1926 route, but it ran only about 125 miles: from US 91 in Idaho Falls to West Yellowstone. At the time, its parent (US 91) ran from Montana to southern California. In a sense, the two routes have now switched places: today US 191 runs from Canada to Mexico, while US 91 has been shortened to only about 110 miles in length. However -- because there are no US routes through Yellowstone National Park -- some consider US 191 to have two segments: a north segment from Canada to West Yellowstone, and a southern segment from Yellowstone's south entrance to Arizona.
In 1934, the north end of US 191 was extended to junction US 10 in Bozeman: |
c. 1951, MT DoT
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This photo was looking east on Main Street (US 191), approaching the intersection with 7th Avenue. This sign is a bit underinformative, because I-90 is straight ahead too (that is how one gets to Livingston):
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Sanderson, Mar. 2000
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Today, US 191 is routed straight through this intersection, to Main's interchange with I-90, which it then overlaps all the way to Big Timber. But historically US 191 ended there, at its junction with US 10 (which no longer exists in Montana; it is now signed as Business I-90 through Bozeman). The sign assembly in the distance makes that a little more clear; it is shown more closely in this photo:
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Sanderson, Mar. 2000
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The north end of US 191 was extended to Malta in 1962:
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c. 1962, MT DoT
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c. 1963, MT DoT
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This photo shows the signage looking north on Central Avenue (US 191) at North 1st Street (US 2), where the US 191 designation formerly ended:
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Wilson
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By the time that photo was taken, US 191 had been extended north, co-signed to the left for a couple blocks with US 2, so the "TO" banner was a bit misleading. This next shot was looking south from US 2, at what was historically the north beginning of US 191:
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Elbert, July 2004
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US 191 was extended north from Malta in 1997, this time to the Port of Morgan on the Canada border. This photo was looking north at the border, at the end of US 191:
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Macdonald, 2001
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On the left side of the road is the US customs office. The green sign instructs people leaving the USA to report to the Canadian customs office, which is the building in the distance on the right side, shown close-up here:
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Macdonald, 2001
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"Monchy" is the name for the Canada side of this port; that is Saskatchewan highway 4 continuing ahead.
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On its south end, US 191 was extended to Tremonton in 1937. Based on this map, the route probably terminated at the same place where today's U-82 (300 East) ends at U-102 (Main Street):
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c. 1939, Rand McNally
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Street View, June 2013
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In 1946, US 191 was extended south again, this time to Brigham City. This map shows not only that endpoint, but also that US 191 traffic had been moved to a bypass that ran east of Tremonton and Garland (today's U-13):
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c. 1956, Gousha
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This photo was looking north on Brigham's Main Street, which today carries U-13 and Business I-15/84, but historically this was westbound US 30S and northbound US 89-91. US 91 continued by turning right on 200 South (modern U-90), while US 30S and 89 continued straight ahead. Also ahead was the south beginning of US 191:
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Nitzman, July 2016
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The US 191 designation was cut back to Tremonton in 1962 (presumably because I-15 replaced its functionality between there and Brigham):
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c. 1963, USGS
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This photo was looking south on U-13 at what was formerly the south end of US 191:
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Sanderson, Mar. 2001
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The crossroad is Main Street; downtown Tremonton (and US 191's previous endpoint) is one mile to the right. Historically US 30S followed the same route as Business I-84 does today: northbound was right on Main, southbound was straight ahead. This photo was looking east on Main (or southbound on historic US 30S):
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Sanderson, Mar. 2001
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US 30S traffic turned right at the intersection ahead, and left was the south beginning of US 191 (the Wellsville Mountains are visible in the background). This photo was looking north along former US 30S, which continued to the left ahead:
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Sanderson, Mar. 2001
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Straight ahead is the former south beginning of US 191. In 1972, US 191 was shortened again, such that it ended at its original terminus (or at least near it -- more details on the Idaho Falls page). That lasted until 1981, when US 191 was cut back to West Yellowstone, in preparation for a big change that took place the following year: US 191 was extended south to Chambers AZ via an implied route through Yellowstone (or one could view it as a separate, southern segment of US 191 that was commissioned to run from the south entrance of Yellowstone to Chambers).
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Either way, this represented a significant change from the original intention of US highway 191: now it skipped Idaho altogether, instead serving Wyoming and a completely different part of Utah. This photo shows the former south beginning of US 191, as seen from westbound I-40:
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Sanderson, Mar. 2013
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This shot shows modern signage at what was once the south end of US 191 at Chambers:
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Sanderson, Mar. 2013
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c. 1983, Rand McNally
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That map makes it clear why it did not make sense to have US 191 heading north from I-40, while just six miles to the east it was US 666 heading south from I-40. Plus, Arizona was probably eager to be done with chronic US 666 sign replacements due to frequent theft. So in 1992, US 191 was extended east from Chambers along I-40 to Sanders, and then south, replacing what had been US 666 all the way to Douglas... or at least close (photos and more info on the Douglas page).
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Research and/or photo credits: Chris Elbert; Julian Macdonald; Alex Nitzman; Dale Sanderson; Ed Wilson
Page originally created 1999;
last updated Jan. 23, 2017.
last updated Jan. 23, 2017.
