North Dakota Highway 1806

North Dakota Highway 1806
Lewis and Clark Trail
Route information
Maintained by NDDOT
Section 1
North end:	Tobacco Gardens Recreation Area
South end:	ND 23 near Watford City
Section 2
North end:	west of Charlson, ND
South end:	ND 23 south of Charlson
Section 3
North end:	ND 8 north of Halliday
South end:	ND 200 southwest of Pick City
Section 4
North end:	Oliver–Morton County border north of Mandan
South end:	SD 1806 at the North Dakota/South Dakota border
Location
Counties:	Dunn, McKenzie, Mercer, Morton, Oliver, Sioux
Highway system
North Dakota Highways ← x20px ND 1804 ND 1 →

North Dakota Highway 1806 (ND 1806) is a state highway in the U.S. state of North Dakota. ND 1806 (as well as ND 1804) was named to reflect the years of Lewis and Clark's travels through the area, and run along the southwest and northeast sides of the Missouri River, respectively. ND 1806 consists of four separate segments, running along Lake Sakakawea and the Missouri River in McKenzie, Dunn, Mercer, Oliver, Morton, and Sioux Counties. ND 1806 is marked as part of the Lewis and Clark Trail.

Route description

The westernmost segment begins east of Watford City on North Dakota Highway 23, and runs north its northern terminus at the Tobacco Gardens Recreation Area on the southern shore of Lake Sakakawea. The next segment of ND 1806 begins a few miles east-southeast of Tobacco Gardens and heads east before turning south and passing through Charlson. The southern end of this segment also ends at ND 23. The third segment runs east-west, and begins at ND 8 between Halliday and Twin Buttes. This segment parallels the southern shore of Lake Sakakawea before ending at ND 200 southwest of Pick City. The fourth and final segment of ND 1806 is largely north-south, with its northern end near the Oliver-Morton county border north of Mandan. The highway passes through downtown Mandan before following the Missouri River south through Morton County and onto the Standing Rock Indian Reservation. The highway is concurrent with North Dakota Highway 24 for much of its length in Sioux County, and breaks with Highway 24 north of the North Dakota/South Dakota border. After entering South Dakota, the highway continues as South Dakota Highway 1806.