South Dakota Highway 377
Location of SD 377 (in red) | ||||
| Route information | ||||
| Maintained by SDDOT | ||||
| Length | 2.173 mi (3.497 km) | |||
| Existed | 1976–present | |||
| Major junctions | ||||
| South end | SD 44 in Interior | |||
| North end | Interior Entrance Station in Badlands National Park | |||
| Location | ||||
| Country | United States | |||
| State | South Dakota | |||
| Counties | Jackson | |||
| Highway system | ||||
| ||||
| ||||
South Dakota Highway 377 (SD 377) is a 2.173-mile-long (3.497 km) state highway in Jackson County, South Dakota, United States. It begins at an intersection with SD 44 in Interior, and travels in a northeasterly direction to its northern terminus at the Interior Entrance Station for Badlands National Park.