MN 171 highlighted in red
|Defined by MS § 161.115(102)|
|Maintained by MnDOT|
|Length||1.886 mi (3.035 km)|
|West end|| ND 59 at the Red River,|
the Minnesota – North Dakota state line
|East end||US 75 at St. Vincent Township|
Minnesota State Highway 171 (MN 171) is a 1.886-mile-long (3.035 km) short highway in the northwest corner of Minnesota, which runs from North Dakota Highway 59 at the North Dakota state line and continues east to its eastern terminus at its intersection with U.S. Highway 75 near St. Vincent. The route passes through St. Vincent.
The route is located in the Red River Valley region.
The route is legally defined as Route 171 in the Minnesota Statutes.
In the 1950s, this route was renumbered 171 when a realigned U.S. 59 was constructed from Lancaster north to Canada.
Since 2003, Canada-bound traffic on nearby U.S. 75 has been directed to follow State Highway 171 west into North Dakota, where it becomes North Dakota Highway 59, which intersects I-29 to Canada. In 2006, the closure became official of the nearby Noyes border crossing on U.S. 75. Minnesota and North Dakota have not yet petitioned AASHTO officials to change the definition of U.S. 75 to follow the routing of 171 and ND 59. As of 2019, nearby U.S. 75 in Minnesota is still signed to what is now a dead-end at the old Noyes border crossing.
The entire route is in Kittson County.
|Red River of the North||0.000||0.000||ND 59 west||Continuation into Pembina, North Dakota|
|Minnesota–North Dakota line|
|St. Vincent Township||1.886||3.035||US 75 – Hallock, Noyes||Eastern terminus|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi|
- "Trunk Highway Log Point Listing - Construction District 2" (PDF). Minnesota Department of Transportation. August 23, 2010. Archived from the original (PDF) on December 4, 2008. Retrieved November 21, 2010.
- "161.115, Additional Trunk Highways". Minnesota Statutes. Office of the Revisor of Statutes, State of Minnesota. 2010. Retrieved November 20, 2010.
- "Chapter 440-H.F. No. 2000", Session Laws of Minnesota for 1933, Mike Holm, Secretary of State, pp. 881–897
- Riner, Steve. "Details of routes 152–218". The Unofficial Minnesota Highways Page. Self-published. Retrieved November 21, 2010.[self-published source]