U.S. Route 121

U.S. Route 121
U.S. Route 121
Coalfields Expressway
	Open segment (WV 121) in red, approximate alignment of future segments in blue
Route information
	Auxiliary route of US 21
Length	108.35 mi (174.37 km)
Existed	1998–present
Major junctions
South end	US 23 in Pound, VA
North end	I-64 / I-77 near Beckley, WV
Location
Country	United States
States	Virginia, West Virginia
Highway system
	United States Numbered Highway System; List; Special; Divided;
	Virginia Routes; Interstate; US; Primary; Secondary; Byways; History; HOT lanes;
	West Virginia State Highway System; Interstate; US; State;

U.S. Route 121 (US 121) is a proposed U.S. highway designated as the Coalfields Expressway, a four-lane highway stretching from Beckley, West Virginia, to Pound, Virginia, approximately 108 miles (174 km) in length. It is designed to connect Interstate 64 (I-64) and I-77 in West Virginia near Beckley to US 23 in Wise County, Virginia, at Pound. While US 121 will not connect directly to US 21, it will intersect at the latter road's original alignment, now a part of I-77.