US 421 (NC) Intersections with interstate highways 2025-11-02 Roadnow US 421 (NC) Intersections with interstate highways MAP I-77, near Hamptonville, New Hampshire map • nearbyMAP I-40, near Winston Salem, New Hampshire map • nearbyMAP I-40 map • nearbyMAP I-85, near Greensboro, New Hampshire map • nearbyMAP I-40, near Winston Salem, New Hampshire map • nearbyMAP I-40, near Winston Salem, New Hampshire map • nearby
