North Dakota Highway 21
ND 21 highlighted in red | ||||
| Route information | ||||
| Maintained by NDDOT | ||||
| Length | 123 mi (198 km) | |||
| Existed | unknown–present | |||
| Major junctions | ||||
| West end | US 85 east-northeast of Amidon | |||
| ||||
| East end | ND 6 north of Breien | |||
| Location | ||||
| Country | United States | |||
| State | North Dakota | |||
| Counties | Morton, Grant, Hettinger, Slope | |||
| Highway system | ||||
| ||||
| ||||
.svg){kind=link}
North Dakota Highway 21 (ND 21) is an east-west highway in North Dakota. The eastern terminus is at ND 6 about 5 miles (8.0 km) north of Breien and the western terminus is at U.S. Route 85 (US 85) about 5 miles (8.0 km) east-northeast of Amidon. The highway is known for the large number of abandonments located along it.