Its eastern terminus is at the Minnesota state line over the Bois de Sioux River.

North Dakota Highway 13 has its western terminus in Emmons County with ND 1804 and travels east about thirteen miles before entering Linton and beginning a concurrency with US 83.

This concurrency travels about ten miles east to Wishek, where the highways part and ND 3 heads south.

The concurrency heads three miles east and enters LaMoure County.

After this intersection, the highway heads eighteen miles due east to LaMoure.

The highway's eastern terminus is over the Bois de Sioux River, on the state line with Minnesota.