Special routes of U.S. Route 23
Several special routes of U.S. Route 23 (US 23) exist. There are 18 extant special routes along US 23 and 14 former routes.
US 23A near Mars Hill
US 23 Bus./US 58 Bus./US 421 Bus. in Gate City
US 23 Bus. southbound at SR 610 just southwest of Norton
US 23 Bus. northbound at SR 640 in Wise
U.S. Route 23 or U.S. Highway 23 (US 23) is a major north–south United States Numbered Highway between Jacksonville, Florida, and Mackinaw City, Michigan. It is an original 1926 route which originally reached only as far south as Portsmouth, Ohio, and has since been extended. It was formerly part of the major highway known as the Dixie Highway. The highway's southern terminus is in Jacksonville, Florida, at US 1/US 17. The northern terminus is at Interstate 75 (I-75) in Mackinaw City, Michigan.
The official southern beginning of US 23 as seen from US 1 and US 17 in Jacksonville, Florida
Pound Gap, where the highway crosses from Virginia to Kentucky
US 23 in Pike County south of Pikeville, Kentucky
US 23 near Marion, Ohio