North Dakota Highway 66

North Dakota Highway 66
North Dakota Highway 66
Route information
	Maintained by NDDOT
Length	138.720 mi (223.248 km)
Existed	c. 1963–present
Major junctions
West end	ND 3 south of Dunseith
	US 281 east of Bisbee; ND 1 south of Langdon; ND 32 south of Mountain; ND 18 east of Crystal; US 81 in Saint Thomas; I-29 in Drayton;
East end	MN 11 at the Minnesota/ North Dakota border
Location
Country	United States
State	North Dakota
Counties	Cavalier, Pembina, Rolette, Towner
Highway system
	North Dakota State Highway System; Interstate; US; State;

North Dakota Highway 66 (ND 66) is a 138.720-mile-long (223.248 km) east–west state highway in the U.S. state of North Dakota. ND 66's western terminus is at ND 3 south of Dunseith, and the eastern terminus is a continuation as Minnesota State Highway 11 (MN 11) at the Minnesota/ North Dakota border.