North Dakota Highway 66

North Dakota Highway 66
Map      ND 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
Major intersections	US 281 east of Bisbee ND 1 south of Langdon 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
← ND 65 → ND 67

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.

Major intersections

County	Location	mi	km	Destinations	Notes
Rolette	​	0.000	0.000	ND 3 – Rugby, Dunseith	Western terminus
	​	19.635	31.599	ND 30 north – Rolla	Southern terminus of ND 30
Towner	​	37.997	61.150	US 281 north – Rock Lake	Western end of US 281 concurrency
	​	40.007	64.385	US 281 south – Cando	Eastern end of US 281 concurrency
Cavalier	​	56.996	91.726	ND 20 – Munich, Alsen, Starkweather
	​	78.981	127.108	ND 1 – Langdon, Nekoma
Pembina	​	101.868	163.941	ND 32 north – Mountain	Western end of ND 32 concurrency
	​	103.872	167.166	ND 32 south – Edinburg	Eastern end of ND 32 concurrency
	​	114.918	184.943	ND 18 – Cavalier, Hoople
	​	122.947	197.864	US 81 north – St. Thomas	Western end of US 81 concurrency
	​	124.950	201.088	US 81 south – Grafton	Eastern end of US 81 concurrency
	Drayton	136.933	220.372	I-29 – Winnipeg, Grand Forks	I-29 Exit 187
		137.339	221.026	ND 44 south	Northern terminus of ND 44
	​	138.720	223.248	MN 11 east – Donaldson	Continues east into Minnesota
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus