South Dakota Highway 50

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Highway 50
Route of SD 50 (in red)
Route information
Maintained by SDDOT
Length	212.421 mi[1] (341.858 km)
Existed	1926–present
Tourist routes	Lewis and Clark Trail Native American Scenic Byway
Major junctions
West end	SD 34 east of Fort Thompson
Major intersections	I-90 / I-90 BL in Chamberlain US 18 / US 281 at Lake Andes US 81 in Yankton I-29 near Vermillion
East end	Iowa 3 near Richland
Location
Country	United States
State	South Dakota
Counties	Buffalo, Brule, Charles Mix, Bon Homme, Yankton, Clay, Union
Highway system
South Dakota State Trunk Highway System Interstate US State
← SD 49 → SD 52

South Dakota Highway 50 (SD 50) is a state route serving south central and southeast South Dakota. The current alignment begins at the junction of South Dakota Highway 34 at "Lee's Corner" east of Fort Thompson, and ends at the Iowa border near Richland, where it continues as Iowa Highway 3. It is about 212 miles (341 km) in length.