North Dakota Highway 50 (ND 50) is a 100.245-mile-long (161.329 km) north–south state highway in the U.S. state of North Dakota.
ND 50's western terminus is a continuation as Montana Highway 258 (MT 258) at the Montana border, and the eastern terminus is at U.S. Route 52 (US 52) northwest of Donnybrook.
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