Missouri Route 121

Route 121
Route 121 highlighted in red
Route information
Maintained by MoDOT
Length	1.258 mi[1] (2.025 km)
Existed	c. 1936–present
Major junctions
South end	US 69 south of Cameron
North end	Route HH in Wallace State Park
Location
Country	United States
State	Missouri
Counties	Clinton
Highway system
Missouri State Highway System Interstate US State Supplemental
← Route 120 → Route 122

Route 121 is a short highway in northwestern Missouri. It begins at U.S. Route 69 (US 69) south of Cameron, where it begins travelling eastward. The road intersects a county route and crosses over two streams. The route ends at the Wallace State Park entrance, where the road becomes Route HH after the intersection. The route was opened around 1936, serving as the connector between US 69 and the state park. The road cost $18,000 to build in 1935, and it allowed federal construction to begin at the park.